What buyers report

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4.8 from 2,140 verified reviews

Absorbs in under a minute and leaves nothing tacky under sunscreen. The 12% squalane is the first serum my skin hasn’t argued with.

Maya — Verified buyer · Nº 004 Barrier Serum

I have refilled the same bottle four times this year. The texture is identical batch to batch, which is more than I can say for anything else on my shelf.

Tomás — Verified buyer · Nº 001 Cleansing Milk

No fragrance means no guessing. Six weeks in, the redness along my jaw has genuinely calmed down and I stopped rotating products to find the culprit.

Priya — Verified buyer · Nº 002 Niacinamide Fluid