Ingredients to Avoid if You Have Acne

Adenosine is one of the most quietly effective anti-aging ingredients in K-beauty. Approved by Korean regulators as a functional anti-wrinkle ingredient, it's found in an enormous number of products but rarely featured on the front label. It smooths fine lines, promotes wound healing, and has anti-inflammatory properties.

The quiet healer — hiding in pimple patches, aftersun balms, and nearly every "barrier repair" cream you've ever met.

The world's most overclaimed soothing ingredient — genuinely helpful for sunburn, mostly filler for everything else.

The Alpine meadow flower every German grandmother has on the bedside table — and the first ingredient sports physios reach for.

The well-mannered vitamin C — stable, gentle, converts to ascorbic acid in skin but slower than L-AA.

The Ayurvedic stress herb that became a wellness darling — topical evidence exists but hasn't caught up with the marketing.