Retinol at 500 ppb on the front of the pack: marketing or meaningful?
On r/AsianBeauty, someone looked up the ingredient list of viral 'retinol collagen' toner pads and was let down. Water, glycols and glycerin led the list, hydrolysed collagen was declared at 50 ppm (0.005%) and retinol at 500 ppb (0.00005%). Their question: if the headline ingredients sit at those levels, are they only there for marketing?
What the replies said
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Most agreed that 'label-claim' ingredients are common, and not only in K-beauty.
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One commenter claimed Korean cosmetics rarely carry retinol at a working level outside prescriptions; others debated how strong 'working' needs to be.
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Several said to judge the whole formula. For the same brand's vitamin C pads, one reply noted the brightening likely leans on niacinamide and plant extracts, since vitamin C is unstable in water-based formulas.
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A minority argued that a gentle daily product doesn't need big numbers, and that tiny amounts of retinol are sometimes added as an antioxidant. The lean: read the list, not the front of the pack.
Desk note Korea regulates the claim side. A product sold as a wrinkle-improving functional cosmetic based on retinol follows the notified level of about 0.075% (2,500 IU/g), or must pass MFDS review with its own efficacy data. If a pad only calls retinol out on the front without the functional-cosmetic label, treat it as a minor supporting ingredient.
Do you check where the 'hero' ingredient sits in the list before you buy?
Original thread: r/AsianBeauty — is it all just marketing? · Source: Kyunghyang Shinmun
Europe sets rules for the wording itself. Under the common criteria in EU Regulation 655/2013, if a product claims to contain a specific ingredient, that ingredient must be deliberately present, and extending an ingredient's properties to the finished product needs adequate, verifiable evidence, such as showing it's present at an effective concentration. A ppm-level 'hero' is exactly where export copy needs care. EU Regulation 655/2013, Annex