Most people are told nothing about this in advance and then find it happening. Pigmentation changes during pregnancy are among the most common skin changes there are, affecting the majority of pregnancies to some degree and more visibly in deeper skin tones.
The useful thing to know early is which of these changes settle on their own, which persist, and what is worth avoiding in the meantime.
What usually happens
Generalised darkening. Areolae, the genital area, the inner thighs, the underarms and existing moles or freckles commonly darken. This is hormonal, it is expected, and it usually settles over the months after delivery without anything being done.
Linea nigra. The vertical line down the middle of the abdomen appears as existing pigment darkens. It fades slowly afterwards, often over several months, and sometimes leaves a faint trace.
Melasma. Symmetrical patches on the cheeks, forehead, upper lip and jawline. This is the one that persists most often and the one most likely to bother people. It is common enough during pregnancy to have earned the name chloasma, and it is driven by the combination of hormones, sunlight and heat. Melasma and hyperpigmentation covers why it behaves differently from other pigmentation.
Darkening at friction points. The neck, underarms and inner thighs darken partly for hormonal reasons and partly because weight change alters where skin rubs. Dark neck causes covers the distinction between this and acanthosis nigricans, which can also appear or worsen.
What settles and what does not
Generalised darkening, areolar darkening and linea nigra usually fade over the months after birth, though not always completely and not on a schedule anyone can promise.
Melasma is the uncertain one. It settles for many people and persists for a significant minority, particularly with continued sun exposure or with hormonal contraception afterwards. Patches that remain past the first year are unlikely to clear on their own, and that is the point at which a dermatologist becomes worth seeing.
What to avoid
This is where the advice matters most, because pregnancy is exactly when people reach for something.
Retinoids, including over-the-counter retinol, are avoided during pregnancy on obstetric advice. Retinol against retinoid covers the family, and the caution applies across it.
Hydroquinone is generally avoided, partly because absorption through skin is higher than for most cosmetic ingredients. It is also prescription-only in India, which does not stop it turning up in unlabelled creams.
Oral tranexamic acid is not used during pregnancy, since it acts on clotting and pregnancy already raises clotting risk. Tranexamic acid for skin covers the routes, and this is the clearest case where the oral form and the serum should not be conflated.
Unlabelled fairness creams and parlour treatments are the real risk in practice. Steroids, mercury compounds and unlisted hydroquinone all circulate in this category, and pregnancy is a poor time to find out what is in something. How to tell whether a cream contains a steroid covers the warning signs, and fast results remain the main one.
Anything new is also worth approaching carefully because skin is more reactive during pregnancy than usual. Patch testing applies more than normally.
What is generally considered reasonable
Sun protection is the whole first tier and does more here than any active would. Pregnancy melasma responds to light exposure like all melasma, and a wide-brimmed hat and shade in the middle of the day cost nothing. How much sunscreen to apply covers the part most people get wrong.
Beyond that, gentle is the operating principle: a cleanser that does not strip, a moisturiser, and patience. Niacinamide, vitamin C and azelaic acid are all commonly considered acceptable, and azelaic acid is the one most often suggested by dermatologists in this situation.
Every one of those is a conversation to have with your own obstetrician or dermatologist rather than a decision to take from an article. Cham is a skincare brand and not a medical authority, and this is a case where that distinction matters more than usual.
When to ask a doctor
Pigmentation that appears suddenly, a patch that is asymmetrical or changing in shape, a mole that alters, or darkening accompanied by other symptoms all belong with a doctor rather than a cream. So does anything that appears alongside unusual fatigue or other changes, since a small number of causes are not dermatological at all.
After
The months after delivery are when most of this resolves on its own, and they are also when people are least inclined to wait. Sun protection matters more in this window than any active does, because melasma that has settled can be reawakened by exposure alone.
Cham makes no product specifically for pregnancy and makes no claim about safety during it. The range is built on niacinamide, alpha arbutin and vitamin C. Alpha arbutin in particular is not an ingredient with pregnancy data behind it, so the honest answer is to ask a doctor about anything applied during these months rather than to take reassurance from a brand with something to sell.
