I used this serum in the morning for a week. Big mistake. Huge.
Peptides and vitamin C are besties, but this formula has a specific copper peptide that literally falls apart in UV light. You’re basically throwing money down the drain if you apply it before sunscreen. Clearstem doesn’t scream this on the bottle — but the chemistry is clear. Use it at night or don’t use it at all.
It’s a milky, lightweight serum — $58 for 1 oz. The claim that got me: “cell-communicating peptides that tell your skin to act younger.” Sounded like marketing BS. I tested it anyway.
Copper Tripeptide-1
Not the cheap stuff — this is the specific peptide that boosts collagen while you sleep
Niacinamide 4%
High enough to shrink pores, low enough to avoid that pilling nightmare
Hyaluronic Acid (low molecular weight)
Penetrates deeper than the standard version — actually hydrates, doesn’t just sit on top
Photo: kevin laminto / Unsplash
Three peptides, one antioxidant, zero fragrance. The copper peptide is the star — it’s what signals your fibroblasts to wake up and make collagen. The niacinamide plays backup by calming inflammation so the peptides can actually work.
- Copper Tripeptide-1: Tells skin to repair itself overnight
- Palmitoyl Tripeptide-1: Firms the jawline area specifically
- Niacinamide: Controls oil without stripping
- Sodium Hyaluronate: Hydrates without feeling sticky
Photo: Elsa Olofsson / Unsplash
It feels like water slipping into silk. Absorbs in about 12 seconds — no tacky residue. First impression: “Is this doing anything?”
Week 2: Woke up and my laugh lines looked… softer? Not gone. But the skin around my mouth wasn’t creasing like origami paper. Unexpected win: my T-zone stopped producing oil overnight. I did not see that coming.
Photo: Fleur Kaan / Unsplash
Fine lines: visibly softer at week 3. Pores: smaller, but not gone. Texture: smoother, but I still get the occasional chin bump. It’s not magic — it’s slow, steady improvement. My skin looks like it slept 9 hours instead of 6.
Photo: Alexandra Tran / Unsplash
Use it at night, pair it with a basic moisturizer, and give it three weeks. Your skin won’t transform — but it’ll look like you actually take care of yourself.