Bright Years All-Day Defence SPF 50 PA++++ Sunscreen

Sodium Hyaluronate — A humectant that holds water in the upper skin — pure hydration, tolerated by essentially everyone, at any concentration. The strength is not printed, so we cannot judge the dose; that counts against the brand. Works from ~1%. Works Ongoing while you use it; no weeks-long build-up to wait for. Suits all skin types. Pure hydration — suits everyone, and dry or dehydrated skin most of all. Apply on damp skin and seal it in.

Betaine — A sugar-beet humectant — steady, gentle hydration for any skin. The strength is not printed, so we cannot judge the dose; that counts against the brand. Works from ~5%. OTC cap 5%. Best for .

Ethylhexyl Methoxycinnamate — A UVB filter — absorbs the burning band of sunlight. The strength is not printed, so we cannot judge the dose; that counts against the brand. OTC cap 10%. Best for .

Butyl Methoxydibenzoylmethane — A UVA filter — guards the deeper, ageing band of sunlight. The strength is not printed, so we cannot judge the dose; that counts against the brand. OTC cap 5%. Best for .

Titanium Dioxide — A mineral filter — sits on the surface and reflects. The strength is not printed, so we cannot judge the dose; that counts against the brand. OTC cap 25%. Best for .

Physiochemical properties and application of hyaluronic acid: a systematic review ›

Hyaluronic acid, a promising skin rejuvenating biomedicine: A review of recent updates and pre-clinical and clinical investigations on cosmetic and nutricosmetic effects ›

Benefits of topical hyaluronic acid for skin quality and signs of skin aging: From literature review to clinical evidence ›