SkinCeuticals Glycolic 10 Renew Overnight Review

SkinCeuticals Glycolic 10 Renew Overnight is a 10% glycolic acid and 2% phytic acid leave-on night cream formulated at pH 3.5 for optimal exfoliation. Used nightly, it helps improve the appearance of dullness, uneven texture and tone in combination, oily, acne-prone and mature skin, while a jojoba and sunflower seed wax complex helps buffer the acid for comfort.

What is SkinCeuticals Glycolic 10 Renew Overnight?

Glycolic 10 Renew Overnight is a leave-on night cream built around a 10% glycolic acid free acid value, formulated at a pH of 3.5 — a precise combination SkinCeuticals states is designed to keep the acid working at its intended concentration rather than being buffered down by the formula. It's paired with 2% phytic acid for a dual-acid exfoliating effect, and finished with a soothing complex of jojoba and sunflower seed wax intended to support the skin barrier while the acids work.

It's positioned by SkinCeuticals as a corrective overnight treatment rather than a rinse-off exfoliant — applied at night, left on, and designed for repeated nightly use once skin has adjusted. The texture is a lightweight cream rather than a gel or serum, and per SkinCeuticals' own product description it's formulated for all skin types except very sensitive or rosacea-prone skin.

Key facts

Key ingredients

SkinCeuticals hasn't published a full INCI list in the product description we reviewed — check the ingredients panel on the product page directly before use if you have known sensitivities or allergies.

Who it's suitable for

Per SkinCeuticals' own product description, Glycolic 10 Renew Overnight is formulated for all skin types except very sensitive or rosacea-prone skin, with a particular focus on combination, oily, mature and acne-prone skin. It's aimed at anyone dealing with a dull complexion, uneven skin tone or rough texture, including those in their mid-thirties and older noticing visible signs of ageing, and it's also positioned as a way to help maintain and extend the results of a professional chemical peel between clinic visits.

If your skin is very sensitive or you have rosacea, SkinCeuticals' own suitability listing excludes you from this specific product — a gentler exfoliating step or professional guidance is likely to be a better starting point. And if you have a diagnosed skin condition, or you're new to leave-on acids generally, we'd recommend talking to our team before adding a 10% glycolic acid product to your routine, rather than assuming it will or won't suit you based on a review.

How to use it

• When: Evening only, on cleansed, dry skin — glycolic acid increases sun sensitivity, so it isn't formulated for daytime use.
• How much: A pea-sized amount is the standard starting point for most leave-on acid creams at this strength; check the product page for SkinCeuticals' specific application guidance.
• Phasing in: SkinCeuticals describes this formula as proven tolerable for nightly use, but if you haven't used a leave-on 10% glycolic acid product before, starting two to three nights a week and building up gradually is the more cautious approach — particularly while introducing any new acid to your routine.
• Next morning: Broad-spectrum SPF, every day you're using it.

Avoid combining this with another leave-on exfoliating acid, retinol or vitamin A product on the same night — layering multiple actives at once increases the chance of irritation without adding benefit. If you're already using an acid toner or serum elsewhere in your routine, this is generally worn instead of that step, not alongside it, on the nights you use it.

How it feels to use

Per SkinCeuticals' own product description, this is a lightweight cream that absorbs readily into the skin without feeling heavy or tacky, working overnight while you sleep. Some people notice mild tingling on initial application as skin acclimatises to the glycolic acid concentration — SkinCeuticals' own guidance describes this as normal, and it typically settles with continued use. If tingling is significant, persistent or accompanied by visible redness or flaking, that's a sign to scale back frequency rather than push through it.

What to expect

Used consistently and paired with daily SPF, glycolic acid formulas like this one are generally understood to help improve the appearance of dullness, rough texture and uneven tone over time, through the way AHAs support surface cell turnover. SkinCeuticals' own product description references an in-house consumer study behind these claims, but the copy we reviewed doesn't publish the underlying data, sample size or independent verification, so we haven't repeated specific percentages or week-by-week figures here — see the data gaps note on this page.

Mild tingling, dryness or flaking in the first few weeks is common with any new leave-on acid and usually settles as skin builds tolerance. If irritation is significant or doesn't ease, scale back frequency or speak to our team.

Pregnancy and breastfeeding

If you're pregnant or breastfeeding, please contact our team for advice before use.

We won't state that this or any acid-based product is or isn't safe in pregnancy in this review — that's a conversation for you, your midwife or GP, and our team, not a blanket line in a product write-up.

How it fits with the rest of your routine

Glycolic 10 Renew Overnight is an evening-only leave-on step, worn instead of — not alongside — another leave-on acid or retinol on the same night. For a gentler, rinse-off way to introduce glycolic acid before committing to a leave-on cream, SkinCeuticals' Glycolic Renewal Cleanser pairs the same acid family in a daily wash. If you're building an evening routine that also includes vitamin A, our Retinol 0.3% review covers SkinCeuticals' entry-strength retinol — worn on alternate nights to this product rather than on the same night. And for skin that's managing breakouts alongside early ageing signs, the three-acid Blemish + Age Solution toner is a stronger step worth reading about, though it isn't designed to be layered with this product on the same night either.

For the wider acne-prone and blemish-prone shelf across the brand, see our Best SkinCeuticals for Acne & Blemish-Prone Skin listicle. For an overview of the full range, start with our SkinCeuticals brand guide.

Our verdict

Glycolic 10 Renew Overnight is a genuinely strong leave-on exfoliant: a true 10% glycolic acid free acid value at pH 3.5, backed by 2% phytic acid and a jojoba and sunflower seed wax complex included to keep the formula comfortable rather than harsh. It's built for combination, oily, mature and acne-prone skin dealing with dullness, rough texture or uneven tone, and works well as a way to extend the results of a professional peel between clinic visits. It isn't for very sensitive or rosacea-prone skin, and like any leave-on acid at this strength, it deserves a gradual introduction and daily SPF rather than being added to a routine all at once. Check the product page for current pricing and stock.