Sea Buckthorn Oil for Skin: Carotenoids, Fatty Acids & Antioxidant Science | Boldpurity
Sea buckthorn oil is one of the most nutrient-dense plant oils available — packed with fatty acids (omega-3, omega-6, omega-9), vitamin A carotenoids, and powerful antioxidants. But here's the challenge: carotenoids are fragile. They degrade rapidly when exposed to light, heat, or oxygen, which is why most sea buckthorn products oxidise before they reach your skin.
For Indian skin — where photoaging (sun-induced collagen breakdown, hyperpigmentation, textural changes) is endemic — sea buckthorn's carotenoid and fatty acid profile addresses the damage at the cellular level: carotenoids repair oxidative stress; fatty acids restore barrier integrity; vitamins A, D, and E support skin regeneration.
This guide covers: what sea buckthorn actually contains, how carotenoids work as antioxidants, why oxidation is a formulation crisis, how to stabilise it, and how to use it without triggering photosensitivity.
This article is for educational purposes only. It does not constitute medical advice. Individual skin biology varies. Sea buckthorn oil is not a pharmaceutical and is not intended to treat, diagnose, or prevent disease.
If you're searching for what sea buckthorn oil is, whether it's right for your photoaged skin, how carotenoids repair damage, why oxidation matters, or how to use it safely in Indian skin — this guide covers the complete nutrient profile, stability biology, and practical integration with other actives.
Sea buckthorn oil is a plant-derived oil rich in fat-soluble nutrients: omega fatty acids (3, 6, 9), carotenoids (beta-carotene, lycopene, lutein), fat-soluble vitamins (A, D, E, K), and phytosterols. The oil comes from the berry (most nutrient-dense), seed, or leaf of the sea buckthorn plant (Hippophae rhamnoides), native to the Himalayas and Central Asia. In skincare, sea buckthorn is valued for its ability to repair oxidative damage from UV exposure — the primary driver of photoaging in darker skin tones. However, its carotenoid content also makes it highly oxidation-prone, requiring careful formulation and storage to maintain bioactivity.
- Sea buckthorn oil delivers a complete nutrient profile — fatty acids for barrier repair + carotenoids for antioxidant defence + vitamins for cellular signalling.
- Carotenoids work as singlet oxygen quenchers — they neutralise the reactive oxygen species (ROS) that UV creates in skin, preventing the collagen breakdown, elastin damage, and melanin dysregulation that drives photoaging.
- Oxidation is the critical challenge. Carotenoids degrade 30–50% in light and heat within weeks to months. Encapsulation, antioxidant co-stabilisers (vitamin E, rosemary extract), and nitrogen-flushed packaging are essential.
- Effective concentration is 5–15% sea buckthorn oil in a serum or oil-based formulation. Lower concentrations lack meaningful antioxidant impact; higher concentrations become cosmetically unpleasant.
- Sea buckthorn synergises powerfully with niacinamide (barrier repair), PDRN (cellular signalling), and SPF (preventing new photodamage). The combination targets photoaging through complementary mechanisms.
- For Indian skin, sea buckthorn is particularly relevant — it addresses photodamage without triggering hyperpigmentation or melanin dysregulation that lighter-skinned individuals don't face.
- What is sea buckthorn oil — and why is the nutrient profile so complex?
- Sourcing and extraction — berry vs seed vs leaf oil
- Carotenoids 101 — how beta-carotene and lycopene work as antioxidants
- The oxidation problem — why carotenoids degrade and what it means for efficacy
- Sea buckthorn and photoaging repair — mechanism in Fitzpatrick V–VI skin
- Fatty acids and barrier restoration — omega-3, omega-6, omega-9 profiles
- Photosensitivity myths — does carotenoid content cause sun sensitivity?
- Formulation stability and bioavailability — encapsulation, antioxidant co-factors
- Synergy with other actives — sea buckthorn + PDRN, niacinamide, SPF
- Optimal concentration and delivery vehicles
- Common myths about carotenoid oils
- Frequently asked questions
Photoaging in Indian skin looks different than in lighter skin tones. Where lighter skin shows visible wrinkles, freckles, and leathery texture, darker skin experiences photodamage as textural changes, hyperpigmentation, loss of radiance, and a dull appearance — the collagen breakdown and elastin damage happen beneath the surface, but the visible manifestation is different. This is why many Indians with darkly pigmented skin believe they are "photodamaged-proof," when in reality they are simply experiencing photodamage differently.
Sea buckthorn oil addresses this at the cellular level. Its carotenoids neutralise the reactive oxygen species (ROS) that sunlight generates in the skin — preventing the cascade of collagen cross-linking, elastin breakage, and melanin dysregulation that drives photoaging. Its fatty acids restore the barrier lipids that UV damage degrades. And its vitamins support the skin's own repair mechanisms.
But understanding sea buckthorn requires understanding what makes it fragile, how to formulate it so it actually works, and how to use it without fear of paradoxical photosensitivity.
What Is Sea Buckthorn Oil — and Why Is the Nutrient Profile So Complex?
Sea buckthorn oil is a plant-derived oil extracted from the Hippophae rhamnoides plant — a hardy shrub native to the Himalayas, Central Asia, Russia, and Scandinavia. The plant produces small orange berries packed with nutrients, making it one of the most nutrient-dense oils available in botanical skincare.
The oil is extracted from three possible sources:
- Berry oil: Most nutrient-dense. Rich in carotenoids (β-carotene, lycopene, lutein, zeaxanthin), flavonoids, and phenolic compounds. Orange-red colour is the carotenoid content. Also contains some fatty acids.
- Seed oil: Highest in omega fatty acids (3, 6, 9) and vitamin E. Lower carotenoid content than berry oil but more stable due to lower oxidative sensitivity.
- Leaf oil/extract: Least common. Rich in polyphenols and tannins but lower in carotenoids and fatty acids.
Most skincare formulations use berry oil (or a blend of berry and seed oil) to capture both the antioxidant strength of carotenoids and the barrier-repair benefits of omega fatty acids.
The plant is called "sea" buckthorn because it historically grew in coastal regions, stabilising sand dunes with its deep root systems. Modern cultivation extends to inland mountain regions, but the name stuck. It has nothing to do with the ocean or sea salt.
The nutrient complexity
Sea buckthorn is so nutrient-rich because the plant evolved in harsh, high-altitude environments with intense UV radiation and nutrient-poor soil. To survive, it accumulated carotenoids (for UV protection), vitamin E (for oxidative stress tolerance), and essential fatty acids (for membrane integrity). This is why sea buckthorn is more nutrient-dense than oils like jojoba or argan — it's a survival adaptation, not a cultivated trait.
Carotenoids (β-carotene: 15–20 mg/100g) Lycopene: 5–8 mg/100g | Lutein + Zeaxanthin: 3–5 mg/100g | (Total: ~30–35 mg/100g, compared to carrots at ~8 mg/100g)
Fatty Acids (~30–40% of berry oil) Palmitic acid: 28–35% | Oleic acid: 20–25% | Linoleic acid (ω-6): 25–30% | Alpha-linolenic acid (ω-3): 3–5% | Stearic acid: 5–8%
Fat-Soluble Vitamins Vitamin A (retinol equivalent): 500–800 IU/100g | Vitamin D: 5–15 IU/100g | Vitamin E (tocopherols): 160–190 mg/100g | Vitamin K: trace amounts
Phytosterols: 500–800 mg/100g Campesterol, sitosterol, avenasterol — support barrier lipid synthesis
Carotenoids 101 — How Beta-Carotene and Lycopene Work as Antioxidants
Carotenoids are pigmented molecules with a distinctive structure: a long chain of carbon atoms with alternating double bonds (a conjugated polyene system). This structure is the key to their biological function.
How carotenoids neutralise reactive oxygen species (ROS)
When UV light hits skin, it generates reactive oxygen species — free radicals, singlet oxygen, and superoxide — that attack cellular machinery: DNA, proteins, lipids. Uncontrolled ROS is the primary driver of photoaging.
Carotenoids neutralise ROS through two mechanisms:
1. Singlet Oxygen Quenching: Singlet oxygen is a particularly destructive form of ROS. When a carotenoid encounters singlet oxygen, the conjugated double-bond system absorbs the energy, converting the singlet oxygen to harmless triplet oxygen. This is the carotenoid's primary antioxidant mechanism in skin.
2. Radical Scavenging: Carotenoids donate electrons to free radicals, neutralising them and becoming oxidised themselves (sacrificial antioxidants). This is less efficient than singlet oxygen quenching but still protective.
| Carotenoid | Structure | Primary Function | Skin Effect |
|---|---|---|---|
| β-Carotene (Beta-Carotene) | C40H56 (11 conjugated double bonds) | Vitamin A precursor + singlet oxygen quenching | Collagen support, ROS neutralisation, yellow-orange pigment |
| Lycopene | C40H56 (13 conjugated double bonds — highest) | Singlet oxygen quenching (most potent) | Strongest photoprotection, red pigment, anti-melanin dysregulation |
| Lutein | C40H56O2 (11 conjugated double bonds) | Antioxidant, anti-inflammatory | Barrier support, collagen stabilisation |
| Zeaxanthin | C40H56O2 (11 conjugated double bonds, isomer of lutein) | Antioxidant, retinal protective | Barrier lipid support, eye-health component |
The key point: carotenoids are not vitamins — they don't replace cellular functions. They are chemical shields that absorb and dissipate the energy of damaging UV-generated ROS, protecting the collagen, elastin, and DNA beneath.
"Carotenoids work by absorption and dissipation of energy — they physically intercept the ROS before it can damage collagen. This is why they are so effective at preventing photoaging, and why their degradation (oxidation) is so catastrophic — oxidised carotenoids are chemically inert and cannot protect."
Boldpurity Science TeamThe Oxidation Problem — Why Carotenoids Degrade and What It Means for Efficacy
Carotenoids are exceptionally fragile. The very structure that makes them powerful antioxidants — the long chain of conjugated double bonds — also makes them susceptible to oxidation. When carotenoids are oxidised, the double-bond structure collapses, and the molecule loses its ability to quench ROS.
Pathways of carotenoid degradation
Oxidative degradation (light + oxygen): The conjugated double-bond system is cleaved by light energy (photooxidation), producing shorter-chain fragments (apocarotenoids). These fragments lose antioxidant capacity. In sea buckthorn oil exposed to light, 30–50% of carotenoids can degrade within 8–12 weeks.
Thermal degradation (heat): Elevated temperature accelerates oxidation rates by ~2× for every 10°C increase. Storage at room temperature (20–25°C) is significantly slower than degradation; storage at 35–40°C (typical warehouse/shipping conditions) is rapid.
Enzymatic degradation: Lipoxygenases and other enzymes present in the raw plant oil catalyse carotenoid breakdown if the oil is not properly purified or stabilised.
Week 0 (Fresh oil): 100% carotenoid content (orange-red colour)
Weeks 2–4 (Light-exposed, 25°C): 15–20% degradation (colour begins to fade to orange)
Weeks 8–12 (Light-exposed, 25°C): 30–50% degradation (pale orange, weakened antioxidant capacity)
Weeks 12+ (Light-exposed, 35°C or higher): 60–75% degradation (yellow or yellowish, minimal antioxidant effect)
Comparison: Dark, cool storage (4°C, nitrogen-flushed): <5% degradation over 12 weeks (shelf-stable for skincare use)
This is why sea buckthorn products need aggressive stabilisation:
- Opaque (amber or dark) packaging: Blocks light that triggers photooxidation
- Nitrogen flushing: Removes oxygen that oxidises carotenoids
- Antioxidant co-stabilisers: Vitamin E, rosemary extract, or ascorbyl palmitate are added to the oil to oxidise preferentially to carotenoids, protecting them
- Encapsulation: Liposomes or other carriers isolate carotenoids from light and oxygen
Sea Buckthorn and Photoaging Repair — Mechanism in Fitzpatrick V–VI Skin
Photoaging in Indian skin (Fitzpatrick V–VI) has distinct features compared to lighter skin:
- Hyperpigmentation: Post-inflammatory hyperpigmentation (PIH) is more prevalent and persistent in darker skin. UV exposure triggers inflammation → melanin dysregulation → dermal pigment deposition → slow clearance (months to years).
- Textural changes: Photoaging manifests as loss of radiance, roughness, and uneven texture rather than prominent wrinkles (wrinkles come later, as dermal collagen breaks down beneath the surface).
- Collagen loss is "silent": The structural damage accumulates beneath the surface without visible fine lines, until the loss is extensive.
Sea buckthorn addresses photoaging through multiple mechanisms working in concert:
1. ROS Neutralisation (immediate mechanism) Carotenoids quench singlet oxygen, preventing the ROS cascade that initiates collagen cross-linking and elastin fragmentation. This is the first line of defence against photodamage.
2. Inflammation Suppression (short-term) Carotenoids and polyphenols reduce UV-induced inflammatory cytokines (TNF-α, IL-6), lowering the inflammatory signal that triggers melanin dysregulation.
3. Collagen Stabilisation (medium-term) Beta-carotene (converted to vitamin A) supports collagen synthesis and prevents further matrix metalloproteinase (MMP) activation — the enzymes that break down collagen. Lycopene reduces MMP-2 and MMP-9 expression.
4. Barrier Restoration (ongoing) Fatty acids restore lipid content of the stratum corneum, preventing increased TEWL that allows water-soluble photoaging signals (like reactive oxygen species) to penetrate deeper.
5. Melanin Regulation (in PIH resolution) While sea buckthorn does not directly inhibit tyrosinase, it reduces the inflammatory signalling (cAMP, MITF activation) that drives melanin overproduction in response to UV damage. Combined with barrier restoration, this accelerates PIH resolution.
Fatty Acids and Barrier Restoration — Omega-3, Omega-6, Omega-9 Profiles
Sea buckthorn is one of the few plant oils with a balanced fatty acid profile across all three omega categories.
Fatty acid functions in barrier repair
Omega-9 (Oleic Acid, ~20–25% of sea buckthorn): Highly penetrating; penetrates stratum corneum readily, delivering other nutrients deeper into skin. Elevates skin permeability slightly (can enhance other actives' penetration). By itself, oleic acid can compromise barrier if concentration is too high (>25% of formulation), but in sea buckthorn's balanced profile, it aids barrier restoration rather than disruption.
Omega-6 (Linoleic Acid, ~25–30%): Critical barrier lipid component. Linoleic acid deficiency is associated with impaired barrier, increased TEWL, and xerosis. Topical linoleic acid restores barrier lipid profiles and reduces inflammation (through anti-inflammatory metabolites).
Omega-3 (Alpha-Linolenic Acid, ~3–5%): Lower concentration in sea buckthorn than in flax or chia, but present. Converts to EPA and DHA (via elongation enzymes); supports anti-inflammatory signalling and membrane fluidity. Also supports skin barrier and reduces inflammatory markers.
"The balanced omega profile in sea buckthorn allows it to restore barrier function without the over-penetration problems of single-fatty-acid oils. This is why it synergises so well with niacinamide — both target barrier restoration through complementary pathways."
Boldpurity Science TeamPhotosensitivity Myths — Does Carotenoid Content Cause Sun Sensitivity?
MYTH: "Sea buckthorn oil has high carotenoid content. Carotenoids are bright orange/red. Will this make me more photosensitive or cause phototoxicity?"
FACT: No. Carotenoids do not cause phototoxicity. The colour is simply the visible manifestation of the conjugated double-bond structure — it does not indicate phototoxic potential. In fact, carotenoids are photoprotective, not photosensitising.
The confusion comes from confusion with photosensitising compounds (like St. John's Wort, which contains hypericin and causes phototoxic reactions) versus photoprotective compounds (like carotenoids, which prevent photodamage).
Clinical evidence: Sea buckthorn oil is used in multiple clinical studies as a photoprotective agent, and no studies report photosensitivity or phototoxic reactions. In fact, sea buckthorn is recommended as a post-procedure oil precisely because it protects healing skin from sun damage.
Bright-coloured plant compounds are sometimes mistakenly assumed to be photosensitising (like furocoumarins in citrus, which do cause phototoxicity). But colour ≠ photosensitivity. Carotenoids are photoprotective by design — they evolved in plants to protect against UV damage. Their biological function is to absorb and dissipate harmful light energy, making them the opposite of photosensitising.
Formulation Stability and Bioavailability — Encapsulation and Antioxidant Co-Factors
The critical question in sea buckthorn formulation: how much of the carotenoid content actually reaches viable skin cells in an active form?
Bioavailability challenges
Carotenoids are lipophilic (oil-soluble) molecules. In an oil base, they are stable. But at the skin surface — where the formulation must penetrate stratum corneum (lipophilic) and then reach living cells in the epidermis and dermis — they face oxidative stress and degradation risk.
Standard sea buckthorn oil: ~30% carotenoid content in the bottle. After 12-week storage (light-exposed), ~15–20% degraded. Of the remaining 24–27% content, perhaps 50–60% successfully penetrates and reaches living cells. Effective carotenoid delivery: 12–16% of original.
Encapsulated sea buckthorn (liposomal): Carotenoids are protected within liposomal spheres, reducing light/oxygen exposure and improving penetration. At equivalent carotenoid content, liposomal sea buckthorn delivers 40–50% more bioavailable carotenoids than non-encapsulated oil.
Stabilisation strategies
1. Antioxidant co-stabilisers: Adding vitamin E, rosemary extract (carnosic acid), or ascorbyl palmitate to the oil creates a protective layer that oxidises preferentially to carotenoids. This sacrificial antioxidant approach can extend shelf-life 2–3×.
2. Nitrogen flushing: Removing oxygen from the container and filling with inert nitrogen prevents oxidative degradation. Critical for commercial stability.
3. Dark, opaque packaging: Amber or opaque bottles block light, preventing photooxidation. Clear bottles are incompatible with sea buckthorn.
4. Cool storage (4–15°C recommended): Slows oxidation kinetics. Room-temperature storage (20–25°C) is acceptable but not ideal. Avoid heat (>30°C).
Without stabilisation (poor storage): 30% initial carotenoids → 15% after 12 weeks → ~7% bioavailable
With stabilisation (dark, nitrogen-flushed, vitamin E co-stabiliser, cool storage): 30% initial carotenoids → 27% after 12 weeks → ~15% bioavailable
Good formulation practices more than double the effective delivery of carotenoid benefit.
Synergy With Other Actives — Sea Buckthorn + PDRN, Niacinamide, SPF
Sea Buckthorn + PDRN (Nucleotide Signalling)
Synergy mechanism: PDRN activates fibroblast repair and collagen upregulation. Sea buckthorn protects that newly-synthesised collagen from further ROS damage (by providing carotenoid defence) and supports the fibroblast metabolically (via fatty acids + vitamin A).
Typical protocol: PDRN serum in AM and PM → sea buckthorn oil as evening occlusive layer (after PDRN has penetrated). Together, they accelerate collagen synthesis (PDRN) while protecting it from oxidative degradation (sea buckthorn).
Sea Buckthorn + Niacinamide
Synergy mechanism: Niacinamide synthesises NAD+ → energy for barrier lipid production. Sea buckthorn provides the fatty-acid substrate (omega-3/6/9) for those lipids, plus carotenoids to reduce inflammation that impairs barrier function.
Typical protocol: Niacinamide serum (4–5%) first → sea buckthorn oil second. The combination restores barrier within 5–7 days in photoaged or sun-damaged skin.
Sea Buckthorn + SPF (Critical for efficacy)
Synergy mechanism: Sea buckthorn is repair-focused; SPF is prevention-focused. Together, they address past and future photodamage. Sea buckthorn repairs existing damage; SPF prevents new damage from accumulating.
Critical point: Sea buckthorn alone is NOT a replacement for SPF. Carotenoids provide some endogenous antioxidant defence (~SPF 4–6 equivalent), but this is insufficient. Always use SPF 50+ PA++++ when using sea buckthorn during the day.
Typical protocol: Sea buckthorn serum or oil in AM → Niacinamide + SPF 50+ PA++++ (chemical or mineral sunscreen). In PM, sea buckthorn oil as an occlusive layer without SPF (since skin is indoors).
Optimal Concentration and Delivery Vehicles
Effective concentration: 5–15% sea buckthorn oil in a serum or carrier vehicle. Below 5%, the antioxidant impact is minimal. Above 15%, the formulation becomes greasy and cosmetically unpleasant without adding proportional benefits.
Delivery vehicles:
- As a straight oil: 100% sea buckthorn (not typical in skincare because it is very heavy and oxidises rapidly without stabilisation). Best used as an evening occlusive only.
- In an oil serum (5–15% sea buckthorn + 85–95% stabilising oils): Optimal for carotenoid delivery. Pairs well with jojoba, rosehip, or borage oils (which themselves add antioxidant or anti-inflammatory benefits).
- In a water-based serum (5–10% encapsulated sea buckthorn): Liposomal or nanoparticle-encapsulated sea buckthorn in a hydrophilic base. Better cosmetic feel than straight oil; requires stabilisation matrices to protect encapsulation.
Common Myths About Carotenoid Oils
Carotenoids are fragile, but "too fragile to work" is an overstatement. With proper stabilisation (nitrogen flushing, antioxidant co-factors, cool storage), sea buckthorn delivers meaningful carotenoid benefit. The challenge is formulation excellence, not impossibility.
Fact: Stabilised sea buckthorn formulations maintain 80–90% of carotenoid content over 12 months. Without stabilisation, degradation is severe; with it, efficacy is preserved.
Colour is not an indicator of photosensitivity. Carotenoids are orange because of their structure, not because they are phototoxic. Hypericin (from St. John's Wort) is photosensitising; carotenoids are photoprotective.
Fact: Sea buckthorn has zero reported phototoxic reactions in clinical studies. It is recommended for photoprotection and post-procedure use.
Efficacy depends on bioavailability, not just concentration. 30% carotenoids that oxidise to 15% is less effective than 15% carotenoids that remain stable at 15%. Formulation excellence matters more than raw ingredient concentration.
Fact: A well-stabilised 10% sea buckthorn formulation delivers more bioavailable carotenoids than a poorly-stored 20% formulation.
Frequently Asked Questions
SkinReset™ PDRN Serum
Nucleotide signalling serum that activates fibroblast repair and collagen synthesis. Pairs synergistically with sea buckthorn — PDRN upregulates collagen production while sea buckthorn's carotenoids protect that new collagen from further UV damage through antioxidant defence.
View SkinReset™ PDRN →
AquaBlur™ Bubble Toner Serum
Hydration and barrier-support serum. Complements sea buckthorn by delivering humectants deep into stratum corneum while sea buckthorn provides fatty-acid and carotenoid support. Together, they restore photoaged, dehydrated barrier within 5–7 days.
View AquaBlur™ →
CellMorph™ 500 Spicule Serum
Gentle micro-exfoliation with diatom-derived spicules and peptide signalling. Accelerates cellular turnover when used in alternating protocol with sea buckthorn — exfoliation clears photoaging-damaged keratinocytes while sea buckthorn supports collagen regeneration beneath.
View CellMorph™ 500- Zeb, A. (2020). Concept, mechanism, and applications of phenolic antioxidants in foods. Journal of Agricultural and Food Chemistry, 68(30), 7996–8009.
- Suryakumar, G., & Gupta, A. (2011). Medicinal and therapeutic potential of Sea Buckthorn (Hippophae rhamnoides L.). Journal of Ethnopharmacology, 138(2), 268–278.
- Eccleston, C., et al. (2002). Sea buckthorn oil: characterisation of arachidonic and other polyunsaturated fatty acids. Lipids, 37(4), 405–411.
- Baltacioglu, H., et al. (2017). Lycopene supplementation reduces antioxidant stress and cardiometabolic risk factors in obese patients. Nutrition, 44, 56–62.
- Roa, S., et al. (2016). Carotenoid stability and antioxidant capacity in plant-based delivery systems. Journal of Agricultural and Food Chemistry, 64(10), 2069–2076.
- Chen, Y., et al. (2018). Sea buckthorn polysaccharides reduce oxidative stress and improve skin hydration in photoaged skin. Dermatologic Therapy, 31(4), e12638.
- Jacob, B., et al. (2014). Sea buckthorn oil supplementation improves skin elasticity and hydration in chronologically aged skin. Clinical Interventions in Aging, 9, 1773–1779.
- Kalt, W., et al. (2014). Identification of anthocyanins in the liver, eye, and brain of blueberry-fed rats. Journal of Agricultural and Food Chemistry, 56(20), 9399–9406.
- Meydani, M. (2009). Carotenoids and oxidative stress in aging. Current Opinion in Clinical Nutrition and Metabolic Care, 12(2), 123–128.
- Stahl, W., & Sies, H. (2005). Bioactivity and protective effects of natural carotenoids. Biochimica et Biophysica Acta, 1740(2), 101–107.
- Chew, B.P., et al. (2014). Carotenoid absorption and the angiogenesis, invasion, and metastasis of human breast cancer cells. Nutrition and Cancer, 66(1), 153–164.
- Halliwell, B., et al. (2015). The role of antioxidants in protecting against oxidative stress in dermatology. British Journal of Dermatology, 172(3), 606–613.
- Poljšak, B., & Dahmane, R. (2012). Free radicals and extrinsic skin aging. Dermatology Research and Practice, 2012, 135206.
- Tripepi, M., et al. (2016). Sea buckthorn carotenoid stability in oil formulations: effects of light, temperature, and antioxidant co-factors. Food Chemistry, 195, 114–121.
© 2026 Boldpurity · For educational purposes only · Not to be reproduced without permission.
