A 10-minute weekly peel at professional strength — glycolic, lactic, tartaric, citric and salicylic acids stacked together. Not a daily product; once or twice a week maximum, never on broken or actively irritated skin. The red colour is tasmannia fruit, not blood.
What this is good for
✓ Great forRough TextureDullnessDark Spots
⚠ Skip ifPregnancySensitive skinDamaged barrierVery dry skin
Ingredient stack
Each ingredient is listed in descending concentration. Above the 1% line the order is regulated — below it, brands can list in any order.
Ingredients above the dashed gold line are dosed above 1% (the regulatory threshold) — these are what the formulation is really built on.
position-estimated %★ brand-disclosed %1% regulatory line
What's actually doing the work
Glycolic Acid
AHA / Alpha Hydroxy Acid
Acid
The smallest AHA molecule — 76 daltons — allowing the deepest penetration and most potent exfoliation. Dissolves desmosomes holding dead skin cells together, accelerating cell turnover. Improves texture, radiance, fine lines, hyperpigmentation and active-ingredient absorption. Used in professional chemical peels at 20–70%.
Salicylic Acid
BHA / Beta Hydroxy Acid
Acid
The only BHA widely used in skincare and the gold standard for acne and congested skin. Oil-soluble — penetrates sebum-filled pores to dissolve plugs and exfoliate pore walls. Dual surface + pore-level action uniquely effective for blackheads, whiteheads and inflammatory acne. At 0.5–1% in cleansers it provides daily maintenance without irritation.
Lactic Acid
AHA / Alpha Hydroxy Acid (milk-derived)
Acid
The gentlest commonly used AHA — larger molecular weight than glycolic means shallower penetration and less irritation. Uniquely dual-function: exfoliates dead skin AND acts as a humectant, hydrating while it treats. Ideal first AHA for sensitive skin. At higher concentrations treats hyperpigmentation and used in professional peels.
Routine placement
Evening only
Similar on the shelf
Put this in context
Skin Stacker is independent and receives no payment from any brand. Ingredient analysis is based on publicly disclosed INCI lists and the peer-reviewed literature. Formulations change — always re-check the label on your specific batch before using.