You cannot use this morning. Full stop. The retinol will oxidize, the vitamin C will destabilize, and your barrier will throw a tantrum.
Hyphen packs two heavy hitters in one bottle — which sounds genius until you realize they hate each other in daylight. I learned this the hard way after two days of midday stinging.
It’s a dual-chamber serum ($38) that keeps the 15% vitamin C and 0.3% retinol separate until you pump. The claim? “Simplified actives.” I tried it because I’m lazy and wanted one step to fix my dull, congested skin.
Dual-Chamber Pump
Press once and both formulas release — no mixing, no mess, no forgetting the other half.
Slow Release Retinol
Encapsulated so it doesn’t hit all at once. Less peeling but also less immediate drama.
Stabilized C
THD ascorbate instead of L-ascorbic acid. Gentler but slower to show brightness.
Photo: Maria Lupan / Unsplash
15% THD ascorbate (vitamin C ester) paired with 0.3% encapsulated retinol plus squalane and ceramides. The squalane is doing heavy lifting here — it’s the only reason your face won’t peel off by week two.
- THD Ascorbate: Gentle C that won’t sting like L-ascorbic acid
- Encapsulated Retinol: Slow-release so you don’t freak out
- Squalane: The barrier buffer keeping you alive
- Ceramide NP: One lipid to patch the cracks
Photo: yunona uritsky / Unsplash
Thin, watery texture — almost like a toner. Absorbs in 12 seconds. No greasy film but also no “slather me” satisfaction. I was bored at first.
Week three: my forehead texture smoothed. The weird thing? It didn’t glow — it just looked… cleaner. Like someone wiped a smudge off my face I didn’t know was there.
Photo: Marcelo Matarazzo / Unsplash
Morning: no more tiny bumps on my chin. Evening: less redness than my usual retinol. But the dark spots? Still there at week four. This is a slow burner, not a flash.
Use it at night, pair it with a basic moisturizer, and don’t expect miracles before month two.