The ingredient glossary
Every active, explained.
What's in STET, what it does, and how settled the science actually is. No 'proprietary blend' — the number is on the label.
Hexapeptide-11
EMERGINGA peptide that supports the look of firmness and elasticity. Promising early evidence — we label it honestly rather than calling it proven.
Ginkgo Biloba
EMERGINGA plant antioxidant that helps defend skin against everyday environmental stress. Supportive, still-emerging evidence.
Hyaluronic Acid
PROVENBinds water in the skin for a plumper, smoother look. One of the best-established hydrators in skincare.
Sodium PCA
PROVENA natural moisturizing factor your skin already makes. Helps it hold on to water. Well-established.
Peptide complex
EMERGINGThe eye treatment and AM/PM cream use a peptide complex to support firmness and hydration. The exact INCI is printed on each pack.
What we don't know yet
How much applied peptide reaches the deeper layers, and whether results differ with hormone changes. Few studies exist in women 40–55. We'll update this when that changes.
The full INCI is printed on every label and every product page — that's the whole point of STET. See it in action on the Daily Firm Serum or The First Proof Set.