Science-first skincare · Skin in your 40s
Most firming serums hide the number. Ours prints it.
2% Hexapeptide-11. Full INCI. An honest line between what's proven and what's still emerging. Measured skincare for your 40s — priced to the formula, not the marketing.
The number nobody shows you
A $90 cream and a $15 cream can carry the same actives, at the same strength.
You can't tell which is which — because the label says 'proprietary blend' and the real percentage is buried on page four, if it's published at all. You've been asked to trust a number you were never allowed to see.
STET ends that. Every active, every percentage we're allowed to disclose, printed where you can read it before you buy — with an honest line between what's proven and what's still emerging.
The category's quiet trick
'Clinically proven' can still mean barely in there.
A brand can name a star ingredient, then add a fraction of the amount that was actually studied — enough to print the name, not enough to do the work. Or bury it in a 'proprietary blend' so you can never check. Or swap in a cheaper form that doesn't absorb. The label still gets to say the word.
So we set one bar and printed it: the active, named; the percentage, stated; proven or emerging, labelled. If we're allowed to disclose it, it's on the label. Most of the shelf doesn't clear that bar — which is the whole reason STET exists.
What's inside · the mechanism
What it does, in plain terms.
Hexapeptide-11
A messenger peptide that supports the skin's own firmness and elasticity signalling.
EMERGINGHyaluronic acid
Sodium Hyaluronate holds water in the upper layers, so skin looks plumper and smoother.
PROVENSodium PCA
A natural moisturising factor your skin already makes — it helps lock that water in.
PROVENThat's the whole mechanism. No 'reverses aging,' because nothing does — only support, measured, and labelled proven or emerging. Never dressed up.
The lab report — Daily Firm Serum
Here's what's in it. Here's how much.
| Active | INCI | % | What it does | Evidence |
|---|---|---|---|---|
| Hexapeptide-11 | Hexapeptide-11 | 2.0 | Supports the look of firmness and elasticity | EMERGING |
| Ginkgo | Ginkgo Biloba Leaf Extract | 1.0 | Antioxidant defense | EMERGING |
| Hyaluronic acid | Sodium Hyaluronate | — | Helps skin hold water | PROVEN |
| Moisture factor | Sodium PCA | — | Part of skin's own hydration | PROVEN |
Made under proof
The proof isn’t the logo — it’s the certificate behind it. Available on request.
The honest comparison
STET vs. the $90 jar.
The First Proof Set
The whole routine, for less than one serum elsewhere.
Three peptide steps for skin in its 40s — treat, eyes, seal. Here's exactly what you get, and exactly what's in it.
- Daily Firm Serum · 2% Hexapeptide-11 · 30 mlstep 1
- Daily Firm Eye · peptide complex · 15 mlstep 2
- Daily Firm Cream (AM/PM) · 50 mlstep 3
- 60-day money-back guaranteeincluded
- Free US shippingincluded
Just starting? The serum alone is $42.
The routine, in three steps.
Serum
Daily Firm Serum on clean skin, morning and night. Press it in.
Eyes
Tap the eye treatment around the orbital bone. A little goes far.
Seal
Daily Firm Cream to finish, AM and PM. That's the whole routine.
We don't fight aging. We fight the words.
| Anti-aging | Skin in your 40s and beyond |
| Erase | Care for |
| Reverse | Support |
| Miracle | Measured |
| Proprietary blend | Full INCI, with % |
Proof, not props
No paid reviews. No stock photos playing customers.
We don't buy five stars. As real reviews come in, they'll live here — unretouched, like everything else.
Try it for 60 days. Use every drop.
If it isn't for you, send it back within 60 days for a full refund. You keep the bottles. The number on the label is the number in the bottle. That's the whole promise.
Questions, answered plainly.
Why is it cheaper than the big brands?
Because you're paying for the formula, not the jar, the celebrity, or the 'proprietary' mystery. Same class of actives, printed percentages, honest price.
Is this anti-aging?
No. Your skin in your 40s isn't a problem to fix. These support the look of firmness. That's the honest claim, and it's the only one we'll make.
What does 'emerging' mean on the label?
The active has promising but not yet settled evidence. We'd rather tell you that than dress it up as proven.
Serum or the full set?
Start with the serum if you want to try one step. Get the set for the whole routine — serum, eyes, cream — at the best price.
Where does it ship from?
Shipped to you with tracking. Free shipping on the full set.
You've read enough labels to know when one's hiding something.
This one hides nothing. The whole routine, every number on it, for $78.
Get The First Proof Set — $78Leave it. It was right.