Retinal Skin Booster Serum (100ppm Retinal) — Reddit Reviews
by Meditherapy
Updated October 3, 2026
0.01% retinal serum for gentle nightly retinoid gains; can sting some eyes.
What the community says
A retinal serum with niacinamide, cica, ceramide NP, and panthenol that Redditors use for beginner retinoid routines. It suits sensitive skin that wants slow, steady results, though a few users report red dots or eye-area irritation.
What this means for you
Backed by 7 threads from r/koreanskincare, r/30PlusSkinCare and 3 more.
Read the threads ↓What people love
Watch out for
Product details
Concerns
Skin Type
Skin type data limited
Where to buy
What the science says vs. what Reddit says
Hyperpigmentation
Some evidence
Retinol: 5 studies tested it on its own. See all 14 studies
What the studies found
- All of these studies found retinol helped fade dark patches
- Most studies showed retinol on the skin made facial dark patches lighter
- A 4% retinol peel faded melasma patches and worked about as well as glycolic acid
- A large review found retinol worked better for dark patches than some other treatments
- Retinol cream also helped fade sun-related dark patches
Acne
Not proven yet
Few or mixed studies. This claim isn't established.
Retinol: 1 study tested it on its own. See all 4 studies
On Reddit: Gentle enough retinal serum supports daily use and visibly improves stubborn cheek breakouts within weeks. 3 mentions
Research context, not treatment advice. Studies are about the ingredient, not necessarily this exact product.
Real Reddit threads — 10 mentions across 7 threads
Meditherapy Retinal Skin Booster Serum (100ppm Retinal) on Reddit, in one place — 7 threads from r/koreanskincare, r/30PlusSkinCare and 3 more, summarized.
“i can’t help but always brag about meditherapy’s retinal line.”
Positive
“their retinal skin booster serum is my absolute fav.”
Positive
“it only has 0.01% retinal, so it’s super gentle. plus it’s packed with cica and centella to help soothe any possible irritation.”
Positive
“meditherapy retinal skin booster serum”
Positive
“i use the retinal every night bc it's super gentle and effective.”
Positive
“What changed my skin was a sulfur face wash, anua azelaic acid, and meditherapy retinal.”
Positive
“Then try meditherapy retinal serum at night.”
Positive
“It cleared my skin for the first time in my life.”
Positive
“It was gentle enough that even my sensitive skin was tolerating daily use (and thriving!) in only a couple weeks.”
Positive
“Body: low and slow. Same idea, longer timing. I’d start with something like Meditherapy Retinal serum, use it every other night for 3-4 months.”
Positive
“Then if all is well, nightly for 3-4 months.”
Positive
“Then swap one night for taz 0.05%, rock that for 2 months”
Positive
“6. Meditherapy retinal skin booster serum”
Positive
“Seeing Meditherapy retinal skin booster serum made me so happy”
Positive
“I really love these products!”
Positive
“Here is my current routine - it's only PM cuz in the AM I am very lasy:”
Positive
“- Meditherapy - retinal skin booster serum”
Positive
“I dont know if I'm using too many products, using pore clogging products or if I just need to do a facial cleansing”
Positive
