A multi-acid pigment serum with azelaic acid, kojic acid, niacinamide and tranexamic acid for dark marks and uneven tone. A genuinely loaded brightening serum aimed at PIH on deeper skin tones; introduce slowly given the acid stack.
The verdict
What this is good for
✓ Great forDark SpotsPost-Acne MarksDullness
The formulation
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. Percentages are positional estimates from INCI order unless a brand discloses them.
A dicarboxylic acid that calms redness, clears bumps and fades post-inflammatory marks while being gentle enough for rosacea and sensitive skin. Works without the irritation of many retinoids.
A pigment-pathway inhibitor that fades stubborn discolouration including melasma and post-inflammatory marks, often paired with niacinamide for tone correction.
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. Percentages are positional estimates from INCI order unless a brand discloses them. Formulations change — always re-check the label on your specific batch before using.