iS Clinical · US-Beauty
Best iS Clinical Products for Combination Skin
3 iS Clinical picks that actually work on combination skin — ranked by editor rating, not by what the brand pushes hardest. Updated 2026.
iS Clinical is the cosmeceutical brand dermatologists' offices actually stock — the line that sits next to ZO Skin Health and SkinCeuticals on the recommendation card. Founded in 2003 by Bryan Johns and Alec Call out of a research background in pharmaceutical and oncology applications, the brand built its reputation on the Active Serum (a multi-acid + arbutin + bilberry serum that handles acne, pigmentation, and aging in one bottle) and Pro-Heal Serum Advance+ (the post-procedure recovery formulation that aestheticians dispense after laser, micro-needling, and chemical peels). Distribution stays selective — dermatologist offices, medical spas, and authorized retailers — which keeps the brand premium but limits casual discovery.
iS Clinical
8.8/10 · serumActive Serum
iS Clinical's hero product and the formulation that built the brand. A botanical multi-acid serum: mandelic acid (gentle AHA, suits sensitive skin), salicylic acid (BHA, acne-targeted), L-ascorbic acid (vitamin C, brightening), arbutin (tyrosinase inhibitor for pigmentation), bilberry + sugar cane + lemon + orange + maple extracts (multi-source AHA/BHA). The breadth is the differentiator: this serum addresses acne, hyperpigmentation, and early aging in a single application — which is why dermatologist offices stock it as the all-in-one cosmeceutical entry point.
iS Clinical
8.5/10 · serumHydra-Cool Serum
iS Clinical's hydration-and-calming serum — sodium hyaluronate + Centella asiatica triple-acid complex (Asiaticoside + Asiatic Acid + Madecassic Acid) + pantothenic acid (B5) + a touch of menthol for the cooling sensation. The Centella triple-acid is the differentiator: most Centella products use the whole-extract; iS Clinical isolates the three active triterpenes for a clinical-strength anti-inflammatory effect. Layer over Active Serum to buffer the multi-acid sting, or use solo for reactive/irritated skin.
iS Clinical
8.3/10 · cleanserCleansing Complex
iS Clinical's daily-cleansing entry point — gentle gel cleanser with willow bark (natural salicylic acid source), sugar cane (natural AHA source), Camellia oleifera (white tea), and Centella asiatica. The dermatologist-and-spa-favorite low-irritation daily wash that doesn't strip the barrier or trigger reactive skin. Pairs perfectly with the brand's actives-led treatment serums — lets you run Active Serum or Pro-Heal without compounding irritation from the cleanse step.