Vitamin C Infinity Cream
Vitamin C Infinity Cream from Skin by Render, built on Vitamin C (topical). Below: what's in it, whether the active actually reaches the layer it needs to, where it goes in a routine, and what to expect.
Vitamin C Infinity Cream at a glance
| Sold by | Skin by Render |
| Price | $19.98 |
| Where it goes | Moisturiser / cream |
| Key active | Vitamin C (topical) |
Does Vitamin C (topical) actually work on skin?
This is a different question from whether it works injected, and the answer is often different too — a molecule has to survive the stratum corneum before any of its biology matters.
Human clinical evidence
- Controlled trials of L-ascorbic acid at 10–20% report reduced hyperpigmentation, improved evenness and modest collagen support. Strong for tone; weaker than retinol for wrinkles.
- Well established as a photoprotective adjunct — it does not replace SPF but measurably reduces UV-induced damage under it.
Correlative data
- Decades of cosmetic use and one of the few actives where users reliably report a visible change in tone within weeks.
How the mechanism reads
- The catch is chemistry, not biology: L-ascorbic acid oxidises. A serum that has gone yellow or brown has already converted to dehydroascorbic acid and is doing less. Buy small, opaque, and replace it.
- It also deactivates copper peptides in the same layer — run vitamin C in the morning and copper at night.
- L-ascorbic acid needs a pH under roughly 3.5 to cross the skin, which is exactly the pH at which it is least stable in the bottle — the central formulation tension of the ingredient. Oxidation shows as a colour shift toward yellow then brown, and a browned serum is not just weaker, it is a solution of dehydroascorbic acid you are rubbing into your face.
- This is the one direct conflict in the whole cosmetics section: ascorbic acid and copper peptides deactivate each other in the same layer — the copper drives oxidation of the vitamin C, and the vitamin C reduces the copper. They are not incompatible in a routine, only in a layer. Vitamin C in the morning, copper peptides at night, and both keep working.
How to use Vitamin C Infinity Cream
Step 5 — Moisturiser / cream
**AM, and keep it away from your copper peptide.** Vitamin C and GHK-Cu deactivate one another — vitamin C morning, copper night.
What to expect, and when
Brightness at 6–12 weeks.
Where to get Vitamin C Infinity Cream
Buy Vitamin C Infinity Cream at Skin by Render →Other Vitamin C (topical) products in the Vault
The rest of the routine
Every cosmetic in the Vault is free to read — mechanism, evidence, layering and where to buy, no login. What the Academy adds is the compound side: 237 peptides and small molecules with dosing, cycling and the protocols that use them.
Join the Academy — $10/mo →