ISDIN Isdinceutics Glicoisdin 8 Soft Exfoliating Peeling Cream Review

The most useful number on the Glicoisdin 8 Soft box is not the 8. It is the 3.2, printed smaller, which tells you how much of that glycolic acid is actually free to work at the cream's pH of 3.5 to 4. Most exfoliating products give you the total percentage and leave you to guess whether the formula has been neutralised into politeness or left sharp enough to sting. ISDIN publishes both figures, and the choice they encode is the whole personality of this product: enough active acid to do something every night, buffered enough that a dry, fifty-something face can keep doing it.

The range this belongs to has been sold in Spanish pharmacies for well over a decade, and the logic is a ladder. Glicoisdin 8 Soft is the bottom rung, a cream for dry, sensitive and mature skin; the 15 Moderate and 25 Intense are gels for people who have already adapted. ISDIN brought the ladder to the US around 2020 under its Isdinceutics label, and the 8 Soft has quietly gathered a few hundred mostly delighted reviews since, without the marketing weight the brand puts behind its sunscreens.

The formula is an old-fashioned emollient cream with an acid in it, and that is meant as a compliment. Water and glycolic acid lead, then PEG-100 stearate and glyceryl monostearate as emulsifiers, cetyl and stearyl alcohols for body, butylene glycol and glycerin for humectancy, and a run of isohexadecane, cetyl palmitate, two cyclic silicones and dimethicone for slip and cushion. Ammonium hydroxide is the neutraliser that brings the pH up from where 8% glycolic would naturally sit. Then comes the part that tells you who this is for: borage seed oil, the richest plant source of gamma-linolenic acid, and, at the very end of the list, ceramide NP. The ceramide is a gesture at that position, but the borage oil is real, and together they explain why a nightly acid cream can leave dry skin feeling supplied rather than scraped. There is no fragrance, no denatured alcohol and no essential oil, which for a product designed to be used on freshly exfoliated skin is exactly right. BHT as an antioxidant preservative is the one ingredient purists will object to; it is present in trace amounts to keep the borage oil from going off.

Using it is undramatic, which is the point. The cream is medium-thick, spreads easily and settles into a soft, velvety finish that reads as a night cream rather than a treatment. The first few evenings bring a brief tingle that fades within a minute, and if you follow ISDIN's advice to start on alternate nights, that is usually the extent of the adjustment. Skin feels noticeably smoother by the third or fourth application, the kind of glassy softness you get when the compacted outer layer of dead cells finally lets go. Within a couple of weeks the effect becomes visible as brightness, and over a month or two the tone evens and the fine lines around the mouth and eyes look shallower. ISDIN's own four-week panel reported unanimous improvement in luminosity, and while a brand panel is not a trial, that is a claim easy to believe for a well-made glycolic at this strength.

Where it disappoints is in what it cannot do. At 3.2% free acid this is an entry-level exfoliant, and anyone who has used a stronger glycolic or a retinoid will find it gentle to the point of subtle. It softens texture and brightens; it does not remodel deeper lines or clear stubborn pigmentation, and it should not be confused with the higher-strength products further up the same ladder. The base, so kind to dry skin, is a problem for oily and combination faces: cetyl palmitate, octyldodecanol and isocetyl alcohol make it rich enough that people prone to congestion will notice. The jar is the usual jar: fingers in the product, no dose control and a 50 g capacity that lasts two to three months at nightly use, which at $85 puts the monthly cost around $30 to $40 for a product doing one modest job.

The price is the honest sticking point. Glycolic acid is cheap, the emollient base is unremarkable, and the ingredient that lifts this above a drugstore AHA cream is really the formulation discipline, the published pH, the borage oil and the absence of anything irritating. That is worth something, particularly to people whose skin has reacted badly to sharper acids. It is not obviously worth double what comparable gentle glycolic creams cost, and there is no larger size to soften the arithmetic.

For its intended reader, a dry, mature or sensitive-skinned person who wants to start exfoliating nightly without the tightness and flaking that stronger products bring, Glicoisdin 8 Soft is a well-judged, trustworthy place to begin, and the clarity of its labelling makes it easy to know when you have outgrown it. For anyone with oily skin, an established acid tolerance or a budget, the same acid does the same work in cheaper and lighter forms.