You slather on retinaldehyde at night, wake up glowing, and then smear on a vitamin C serum with ferulic acid that nukes the whole thing. That’s not skincare — that’s a demolition derby.
Here’s the science nobody tells you: retinaldehyde (the fancy retinoid in June Jacobs‘ Night Serum) works by converting to retinoic acid in your skin — but it’s pH-sensitive. Your morning antioxidants raise skin pH for hours, so your PM retinal hits a wall before it even starts.
June Jacobs Night Retinaldehyde Serum — $98 for 1 oz. The claim that made me hit add-to-cart: “firmer, brighter skin in 4 weeks” without the peeling hell of prescription retinoids.
0.1% Retinaldehyde
The Goldilocks retinoid — 11x faster conversion than retinol, but half the irritation of tretinoin.
Encapsulated Delivery
Time-release spheres mean it sinks in over 8 hours, not 8 minutes — so it works while you actually sleep.
No Fragrance, No Dyes
Smells like nothing. Feels like nothing. Acts like something.
Photo: Harper Sunday / Unsplash
It’s not just retinaldehyde — they packed it with barrier-repairing fats so your skin doesn’t freak out. The formula is built for nightly use, not “maybe twice a week if I remember.”
- Retinaldehyde: Stimulates collagen and speeds cell turnover — the real anti-aging workhorse
- Squalane: Mimics your skin’s own oils, keeps moisture locked in while retinal works
- Ceramides: Rebuild the lipid barrier so you get benefits without the flakiness
- Bisabolol: Chamomile-derived — calms redness before it starts
Photo: Maria Lupan / Unsplash
Slides on like a light gel-cream — absorbs in about 20 seconds, leaves zero greasy film. You’ll forget you’re wearing it, which is honestly the best compliment a night serum can get.
Week 2: My chin started peeling (normal retinoid behavior), but by day 12 it stopped — and my skin looked like I’d slept 9 hours instead of 6. The unexpected part? My dark spots faded faster than my fine lines. Nobody tells you that.
Photo: El S / Unsplash
Four weeks in: my forehead lines look like someone smudged them with an eraser — not gone, but definitely softer. The pores on my nose? Smaller. My skin-tone unevenness? Actually even. The sagging jawline? Still sagging — no serum fixes gravity.
Photo: Alexandra Tran / Unsplash
Retinol PM is the old boyfriend who texts you at 2am. Retinaldehyde is the one who plans dinner — same goal, way smoother execution. June Jacobs wins, and honestly, it’s not close.