Stretch marks come in colours, and the colour is a clue. It tells you roughly how old a mark is, what is realistic to expect from anything you try, and — in a few specific cases — when a quick word with a doctor is worthwhile. One thing most guides get wrong: the colours they describe assume fair skin.
Quick Answer
Colour tells you the stage. A new mark is inflamed and shows the vessels beneath it; a mature one has settled and lost pigment. Early marks respond better to anything; mature ones are permanent.
On fair skin that reads as red or purple, then white. On medium-to-deep skin, new marks often look darker than the surrounding skin — brown rather than red — before fading to pale. Same two stages, different appearance.
Nearly all are harmless. The exception worth knowing: wide purple striae appearing with no obvious trigger, especially alongside other symptoms, deserve a doctor's assessment.
In short
Two stages. Striae rubrae — new, inflamed, often itchy, and the stage most responsive to intervention. Striae albae — mature, settled, flat and permanent. The shift takes months to a couple of years. Most stretch marks are entirely harmless, and no cream erases an established one.
On this page
The background
Stretch marks — striae distensae — form when skin is stretched faster than its collagen and elastin can adapt, disrupting the dermis. The mark then goes through stages as it settles, and each stage looks different. So red and white aren't different kinds of stretch mark: they're the same mark at different ages.
Colour Is Stage
| Stage | How it looks and feels | What it means |
|---|---|---|
|
Striae rubrae (early) |
Red, pink or purple on fair skin; frequently darker brown on deeper skin. Often slightly raised, and commonly itchy. | Recent and inflamed. The stage most responsive to intervention. |
|
Striae albae (mature) |
Pale, silvery, lighter than surrounding skin. Thin, flat, sometimes slightly sunken. | Settled and healed. Considered permanent. |
The transition takes months to a couple of years, varying with the person and the site. So a mark that still has colour in it is relatively young — and that single fact shapes what's realistic to expect.
About the itch
Early striae often itch — that's the inflammation, and it's normal. Try not to scratch. Scratching an already inflamed mark adds irritation, and on skin that pigments readily it can leave the area darker than it would otherwise have been. A plain moisturiser and something cool usually settle it.
How This Looks On Deeper Skin
Almost every guide to stretch mark colours describes red, purple and white. Those descriptions were written from fair skin, and they can leave people with medium-to-deep skin unable to recognise their own.
Same stages, different appearance
Early marks on deeper skin frequently appear darker than the surrounding skin — brown or deep reddish-brown rather than pink or purple. The inflammation is the same; what differs is that it also stimulates pigment, so the mark reads as darker rather than redder.
Mature marks are pale on everyone — that stage involves a loss of pigment in the affected skin. Which means on deep skin the finished mark sits lighter than everything around it, and the contrast can be more noticeable, not less.
So the stage this article calls permanent is also the one most visible on the skin tones least often pictured in articles about it. Worth knowing, and worth saying.
One practical consequence: if you are watching for "red or purple" and you have deeper skin, you may miss the early window entirely — the stage where anything you do has the best chance of mattering. Look for new marks that are darker and slightly raised, not necessarily red ones.
Why The Colour Changes
When a stretch mark first forms, the skin is freshly disrupted and inflamed, and the small blood vessels in the dermis show through the thinned surface — the red or purple of the early phase. On deeper skin that inflammation also drives pigment production, adding brown to the picture.
Over the following months the inflammation settles and those vessels become less visible. What is left is skin with altered collagen arrangement and reduced pigment, which reads as pale and slightly sunken. That is the mature stage — the mark calming down and settling into its final form.
Why Early Marks Respond Better
Everyone says to treat stretch marks early. Fewer explain why, and the reason makes the advice worth acting on.
A window, not a preference
In the early phase the tissue is still active. There is ongoing inflammation and fibroblast activity — cells still laying down and remodelling collagen — which is something an intervention can influence.
By the mature stage that process has finished. The collagen has settled into its altered arrangement and the mark is structurally stable. There is far less to work with, which is why results drop off sharply — and why "treat it early" is a genuine window rather than general encouragement.
What Causes Them
For the vast majority of people, stretch marks are an ordinary response to skin being stretched.
- Puberty — rapid growth in adolescence.
- Pregnancy — very common, particularly later on.
- Changes in weight or muscle — including gains from training.
- Genetics — some people's skin is simply more prone to striae, and there is nothing to be done about that.
- Prolonged potent corticosteroids, topical or oral.
None of these is a health worry in itself. They are simply situations where skin gets stretched, or where its resilience changes.
When To Check With A Doctor
A specific pattern to watch
Occasionally striae are a clue to something else. In particular, wide striae — often more than a centimetre across — that are purple or deeply reddish, classically on the abdomen, flanks, breasts or thighs, and appearing without an obvious trigger like pregnancy, growth or weight change.
That pattern can be associated with an excess of cortisol — as in Cushing's syndrome — or with prolonged steroid use. It matters more if it comes alongside other signs: central weight gain, skin that bruises easily, muscle weakness, fatigue or mood changes.
Most stretch marks are not this — the ordinary kind that follow pregnancy, a growth spurt or a change in weight need no investigation at all. But if that combination sounds familiar, it is worth seeing a doctor.
Can You Fade Them?
Honestly, only so far. Early marks respond better, for the reason above, and a dermatologist has prescription and in-clinic options that can help at that stage. Mature marks are permanent — their appearance can sometimes be softened by professional procedures, and they become less noticeable with time, but nothing erases them.
No cream or oil removes an established stretch mark, however it is marketed. That is worth holding onto in a category built almost entirely on implying otherwise.
If you are pregnant or considering treatment, speak to a dermatologist first — several of the actives used for striae are not suitable during pregnancy or breastfeeding.
A note on normal
Whatever colour they are, stretch marks are among the most common features of human skin — a record of a body that grew, changed or carried a pregnancy. They are harmless, they fade, and they don't need treating unless you want to explore options.
Reading their colour is useful information, not a to-do list. We would rather give you an accurate picture than sell you a miracle — knowing what the colour means helps you set realistic expectations, and, in the rare case it matters, know when to check in with a doctor.
Frequently Asked Questions
Stretch marks are usually a normal, harmless feature of skin. This article is educational, does not diagnose any condition, and makes no promise to remove or reduce stretch marks. No Boldpurity product is referenced or recommended. Descriptions of striae stages, collagen remodelling, pigmentation and cortisol excess describe published dermatology and general biology, not the effect of any product; mature striae are permanent and no cosmetic product erases them. The medical-flag information is provided so readers know when to seek assessment and is not a basis for self-diagnosis — wide purple striae appearing without an obvious cause, or striae with other systemic symptoms, should be assessed by a doctor. Several actives used for striae are unsuitable in pregnancy or breastfeeding; consult a dermatologist before any treatment. Aligned with the India CDSCO cosmetic framework, the Cosmetics Rules 2020 and the ASCI Code 2021.
References
- Al-Himdani S, Ud-Din S, Gilmore S, Bayat A. Striae distensae: a comprehensive review and evidence-based evaluation of prophylaxis and treatment. British Journal of Dermatology. 2014;170(3):527–547.
- Korgavkar K, Wang F. Stretch marks during pregnancy: a review of topical prevention. British Journal of Dermatology. 2015;172(3):606–615.
- Nieman LK, Biller BMK, Findling JW, et al. The diagnosis of Cushing's syndrome: an Endocrine Society clinical practice guideline. Journal of Clinical Endocrinology & Metabolism. 2008;93(5):1526–1540.
- Davis EC, Callender VD. Postinflammatory hyperpigmentation: a review of the epidemiology, clinical features, and treatment options in skin of color. Journal of Clinical and Aesthetic Dermatology. 2010;3(7):20–31.
- DermNet. Striae (stretch marks). dermnetnz.org.
Note to editor. All four original references are real and correctly matched — Al-Himdani is the definitive striae review and the Endocrine Society guideline is the right source for the Cushing's flag. That flag is well-judged and has been retained in full. Davis & Callender is added for the pigmentation section. The main addition is how striae present on medium-to-deep skin: the article's colour framework — red, purple, then white — was written from fair skin, and early striae on deeper skin frequently appear darker rather than redder, because the inflammation also drives pigment. A reader with deeper skin watching for "purple" may miss the early window entirely, which is the stage where intervention has the best chance. The mature stage also matters more there, since pale striae contrast more sharply against deep skin. For a brand serving Fitzpatrick III–V this was a structural gap, not a detail. Three smaller additions: why early marks respond better (active inflammation and fibroblast remodelling versus settled collagen), a rough timeline for the transition, and an explanation of the itch, which appeared in the original table unexplained. One item for you: the build note describes this as a sibling to /what-causes-stretch-marks with a cross-link, but no such link exists in the body — please add it with the canonical path.
