Silicone-based 10% azelaic acid — anti-inflammatory, gently exfoliating, melanin-inhibiting, and one of the few actives considered pregnancy-safe. Excellent for rosacea-prone skin, post-inflammatory pigmentation and mild acne. The silicone base gives it a distinctive tacky texture; layer thinly.
The verdict
What this is good for
✓ Great forRednessDark SpotsAcne
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.
~50–80%Aqua (Water)
~5–25%Isohexadecane
10%Azelaic Acid
~2–6%Cetyl Ethylhex…
~1.5–4%Ethoxydiglycol
≤ 1% each21 more ingredients below 1%
position-estimated %★ brand-disclosed %1% regulatory line
A dicarboxylic acid from grains with a uniquely versatile clinical profile: antibacterial (kills C. acnes), tyrosinase-inhibiting (fades PIH and melasma), anti-inflammatory for rosacea, and normalises keratinisation inside pores. One of the only effective actives completely safe in pregnancy. At 20% (prescription) it is FDA-approved for rosacea.
The closest active-matched alternative is the Tower 28 SOS Daily Rescue Facial Spray (50% active overlap). We found 1 option that share this product’s hero actives.
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.