What a Stratum audit checks

From ingredient redundancy to the order you apply each step.

Viscosity and absorption order

Watery hydrators go before rich occlusives, so each layer sits where it should.

Spot duplicate retinoids, stacked exfoliating acids and needless overlap.

PM: Retinol and 7% glycolic acid in one session raises irritation risk. Move glycolic to alternate nights.
AM: Salicylic toner after Vitamin C. Apply the toner first on clean skin, or rotate the two.

Sun-sensitive actives move to night; daytime protects your barrier.

Salicylic tonerHyaluronic gelSPF 50

RetinolGlycolic, alternate nightsCeramide cream

Completed audits stay in your account to reopen for free as products change.

Examples are illustrative.

Ready to check your own routine?