250 ml / 8.45 fl oz
✔ 5% glycolic acid for hyperpigmentation, dark spots, melasma, and PIH
Clinical concentration used in dermatologist-recommended toners
✔ Brightens the look of pigmentation on the face without harsh actives
✔ PM use, 2–3× weekly. Safe for all skin types, including brown skin
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Glycolic acid is the smallest alpha hydroxy acid (AHA) molecule, which lets it penetrate the outermost skin layers where pigment sits. Once there, it accelerates the shedding of pigmented cells, gradually brightening the look of dark spots, melasma, and post-inflammatory hyperpigmentation (PIH).
At 5% concentration with a free-acid pH around 3.5, the formula is strong enough to work on hyperpigmentation but gentle enough for weekly use without over-exfoliating. Cranberry and lingonberry extracts provide antioxidant support, protecting skin from the oxidative stress that drives new pigmentation.
Apply 2–3 drops to a cotton pad and sweep across cleansed, dry skin, avoiding the eye area. Wait 30 seconds, then follow with a fragrance-free moisturiser — we recommend Ceramide Repair Complex on toner nights.
Use in the evening, 2–3× per week for the first month. Increase to nightly only if skin tolerates it well. Every morning after use, apply broad-spectrum SPF 30+ — glycolic acid increases sun sensitivity, and unprotected sun exposure is the fastest way to make hyperpigmentation worse.
Do not use in the 7 days before or after any aesthetic procedure (microneedling, laser, chemical peel). For that window, use The 72-Hour+ Cream instead.
Aqua, Glycolic Acid (5%), Potassium Hydroxide (pH adjuster), Vaccinium Macrocarpon (Cranberry) Extract, Vaccinium Vitis-Idaea (Lingonberry) Extract.
Formulated for post-procedure skin
Based on a self-perception survey of 121 testers using The 5% Toner 2–3 times weekly for 8 weeks. Results are self-reported and individual results vary.
“Honestly was super skeptical about another barrier cream, but my face was literally stinging after I overdid it with retinol. Used this for like 2 weeks and the burning completely stopped. Waking up with smooth, normal skin again instead of bright red flakes lol. Worth it!”
“Got this to use after my skin healed up from RF microneedling. Super hydrating without feeling like a layer of grease on my face overnight. My skin usually gets super dry after treatments but this kept everything calm and soft. Definitely ordering another jar when I run out.”
“I have crazy sensitive skin that reacts to basically everything, but this is so gentle. Really rich texture that sinks in nicely without making me look like a greaseball. My face feels insanely soft when I wake up. A new holy grail for sure.”
“Got this after my aesthetician recommended it following my SkinPen session. Applied it daily after the 3-day recovery mark and my skin healed way faster than usual. No weird fake scent, just really solid hydration that actually lasts all night.”
“Fixed my chemical peel flaking in 3 days flat, so 5/5 for the actual product. Only taking off one star because the heavy glass jar takes up so much room in my travel makeup bag. But the cream itself is honestly unmatched for barrier repair.”
“Bought this to pair with my AHA toner routine and it makes such a difference. Rebuilds the barrier overnight so I don't get any redness or irritation the next day. Skin feels like velvet in the morning. Will definitely keep this stocked.”
“Saved my skin after a superficial peel! The peeling stopped way faster than it usually does. I only docked one star because I wish it came in a pump tube instead of a jar for travel, but the actual cream inside works wonders.”
“My face gets super reactive whenever the weather changes, but this cream completely balanced my skin out. It sinks in so nicely and doesn't leave a gross oily layer. My skin looks plump and hydrated every morning when I wake up!”
“Hands down the best ceramide night cream I’ve tried. Fixed my flaky chin patches in two days flat. 4 stars instead of 5 only because I wish the jar was a little bigger for the price, but the actual cream inside is top quality.”
Use between procedures — not immediately after
Microneedling
Pause 7 days before/after
Laser
Pause 7 days before/after
Chemical Peels
Pause 14 days before/after
Injectables
Wait 24 hours after
The 5% Toner · Glycolic Acid · 250 ml
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Most glycolic acid toners target general exfoliation. The 5% Toner is formulated specifically for hyperpigmentation, dark spots, melasma, and PIH — with a clinical concentration, a free-acid pH that actually works, and antioxidant support that protects against the pigmentation cycle.
| The 5% Toner | Most glycolic acid toners | |
|---|---|---|
| Formulated specifically for hyperpigmentation | ||
| 5% glycolic acid at pH 3.5 (clinical free-acid value) | ||
| Allergen Label Free (no declared fragrance allergens) | ||
| Antioxidant support (organic cranberry + lingonberry) | ||
| COSMOS Natural certified by EcoCert |
Our 5% Toner is a fragrance-controlled glycolic acid toner formulated for hyperpigmentation, dark spots, melasma, and post-inflammatory hyperpigmentation (PIH). At 5% glycolic acid with a pH balanced for real efficacy, this is the clinical concentration that dermatologists point to when customers ask "does glycolic acid help with hyperpigmentation" — yes, it does, when the formulation is right.
Formulated with organic cranberry and lingonberry extracts for antioxidant support and Allergen Label Free — no fragrance components at declarable levels. Suitable for all skin types, including brown skin and sensitive skin. Apply 2–3 evenings per week to clean, dry skin; follow with SPF the next morning.
Certified & independently tested
COSMOS Natural
5% AHA
Clinical Concentration
Vegan
Certified
Allergen Label
Free
No Synthetic
Fragrance
Results shown reflect consistent use over multiple skin renewal cycles. Individual results vary. Pigmentation fades gradually and may not resolve completely. Always use SPF during use. Image is illustrative.
Our glycolic acid delivers a free-acid value dermatologists consider clinically meaningful for hyperpigmentation, melasma, and post-inflammatory pigmentation. Weaker concentrations (2–3%) barely register on darker pigmentation. Stronger ones (10%+) over-exfoliate and paradoxically can make hyperpigmentation worse via subclinical inflammation.
Organic cranberry and lingonberry extracts add antioxidant support — the same red-berry family used in premium exosome-adjacent formulations. They protect skin from the oxidative stress that drives new pigmentation, which is why our 5% Toner is designed to reduce existing dark spots and slow the appearance of new ones.
Allergen Label Free formulation — the only glycolic acid toner in the Exosthetics line free from all declared fragrance allergens.
Safe for sensitive skin and brown skin.
Yes. Glycolic acid is one of the most-studied treatments for hyperpigmentation. At the right concentration (around 5%) and pH (around 3.5), it accelerates the shedding of pigmented skin cells, gradually brightening the look of dark spots, melasma, and post-inflammatory hyperpigmentation. Consistency and daily SPF matter more than concentration — a 5% formula used consistently outperforms a stronger formula used sporadically.
Most customers see visible fading of dark spots and PIH in 4–8 weeks of consistent 2–3× weekly use. Full results settle in around 12 weeks. Deeper pigmentation like melasma or older post-inflammatory hyperpigmentation can take 3–6 months. Skipping SPF resets the clock, because sun exposure regenerates the pigment the acid is fading.
No — glycolic acid itself does not darken skin. The reports of "glycolic acid darkening skin" almost always trace to one of two causes: using glycolic acid without SPF (sun exposure regenerates and deepens pigmentation), or overuse (subclinical irritation triggers post-inflammatory hyperpigmentation). Use The 5% Toner 2–3× weekly and pair with SPF 30+ in the morning to avoid both.
Yes — if overused or paired incorrectly. Glycolic acid used more than 3× weekly, or used without SPF, can trigger post-inflammatory hyperpigmentation (the exact thing it's trying to fade). Our 5% concentration is designed to be strong enough to work at 2–3× weekly use — not requiring nightly application that stresses skin.
Yes, at the right concentration and with sun protection. Brown skin has more melanin activity, which means both faster pigmentation and faster response to gentle exfoliation. A 5% concentration is the sweet spot: strong enough to work, gentle enough to avoid triggering the pigmentation-inflammation cycle that hurts brown skin more than fair skin. Always follow with SPF 30+.
Glycolic acid is one of the three best-studied ingredients for hyperpigmentation (alongside hydroquinone and azelaic acid). It's the most-recommended over-the-counter option because it doesn't require a prescription and doesn't carry the risks of long-term hydroquinone use. For post-inflammatory hyperpigmentation and mild melasma, glycolic acid at 5% is the first-line topical treatment most dermatologists recommend.
Yes, for mild-to-moderate melasma. Deeper (dermal) melasma responds slower than surface (epidermal) melasma. The 5% Toner works best in combination with strict daily SPF 30+ and gentle handling — melasma is inflammation-sensitive, so overuse can worsen it. Start at 1–2× weekly and build up.
Apply 2–3 drops to a cotton pad, sweep across cleansed face avoiding the eyes, wait 30 seconds, follow with a fragrance-free moisturiser. Use PM only, 2–3× weekly for the first month. Every morning: broad-spectrum SPF 30+.
Yes, PIH is one of glycolic acid's strongest use cases. PIH from acne, minor injuries, or ingrown hairs typically responds within 4–8 weeks. Deeper PIH from insect bites or wounds may take 3+ months. Consistency with 2–3× weekly application and daily SPF makes the biggest difference.
Glycolic acid works by accelerating skin cell turnover, exposing new less-pigmented skin. Kojic acid works by inhibiting the enzyme that produces melanin. Both are effective; glycolic is typically better for post-inflammatory hyperpigmentation and rough skin texture, while kojic is often better for melasma and even-tone maintenance. They can be layered but not on the same night.
Three things matter: (1) 5% concentration — strong enough to work, gentle enough for regular use; (2) low free-acid pH around 3.5 — because acid at high pH doesn't penetrate skin effectively; (3) fragrance-free or allergen-label-free formulation — fragrance triggers the inflammation that causes new pigmentation. The 5% Toner is formulated on all three principles.
