Radiant Tone Dual Serum — Reddit Reviews
by Eucerin
Updated September 17, 2026
Thiamidol serum fades stubborn hyperpigmentation and melasma; heavily fragranced, irritating.
What the community says
This serum uses thiamidol to target melasma and tough hyperpigmentation with noticeable results. Many users see improvement after consistent use for months, but its strong fragrance often causes irritation or headaches. It suits users who tolerate fragrance well, not sensitive skin.
What this means for you
What people love
- Contains thiamidol, an effective tyrosinase inhibitor for pigmentation
- Users report significant melasma and sun spot fading with consistent use
- Absorbs quickly with a thin lotion texture, layering easily under SPF or moisturizers
Watch out for
- Strong fragrance triggers irritation, dryness, and headaches for sensitive users
- Can cause burning sensation and breakouts, especially on sensitive or acne-prone skin
- Pricey and short-lasting; bottle often lasts only about a month
Product details
Use caution
Where to buy
Real Reddit threads — 59 mentions across 29 threads
Eucerin Radiant Tone Dual Serum on Reddit, in one place — 29 threads from r/AsianBeauty, r/30PlusSkinCare and 4 more, summarized.
“Eucerin dual serum!!!!”
Positive
“I tried everything for YEARS to get rid of my hyperpigmentation and melasma”
Positive
“it's a MIRACLE WORKER!”
Positive
“I started using the dual serum”
Mentioned
“my big sister ... has had fantastic results.”
Mentioned
“Eucerin Radiant Tone Dual Serum (Thiamidol) (let fully dry between the toner and the AA)”
Positive
“No, I use Thiamidol. It is more stable than vitamin C”
Positive
“Tret + AA+HQ = the perfect trio 💕Took me 2yrs to get here”
Positive
“PM: Propolis serum+ Eurecin dual serum before sleeping”
Positive
“This is EXACTLY my current skincare routine. 100% recommended.”
Positive
“It's been 2-3 months and I have never felt so good about my skin in years 💯💯”
Positive
“Eucerin Radiant Tone serum”
Cautionary
“Fragrance:”
Cautionary
“here's some products I've used in the last 6 months ... that were terrible for my skin”
Cautionary
“I’m thinking of trying Eucerin Radiant Tone to treat it.”
Mentioned
