Eucerin Radiant Tone Dual Serum with Thiamidol: Guru Score 72%

What the gurus are saying.

Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.

All takes Yay takes Nay takes Mixed takes Hide sponsored

~Yay

"If you kind of disrupt that, it prevents that pigment from forming. It does also have some really promising results when it comes to eradicating pigment a little bit quicker and helping to disperse the pigment we already have a little bit more evenly. [...] Some of these studies show that it's actually the most effective of the commercially available [...] over-the-counter products. The [...] anti-pigment dual serum is probably the best in terms of concentration."

Dr. Daniel Sugai

722k subs

~Nay

"I hope Eucerin can take out the fragrance or just tone it down. A fragrance-free option would be great [...] because we never want to cause a rash that leads to dark spots and worsening hyperpigmentation. So I'd [...] have to cut this fragrance product, not thamol as a molecule or as an ingredient. That said, I've had patients truly happy with this to use on their breaks from hydroquinone because you can't use hydroquinone all the time."

All 4 takes from Dr. Daniel Sugai

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"The downside to it is one, you have to use it frequently. The studies show you get max benefit by using it four times a day, which is a lot. You got to use it in the serums twice a day, sunscreen, and also in the night cream. There's ways to apply it four times a day but it is a lot. And also it's heavily fragrance, and I worry about my patients who are sensitive to fragrance. I am not sensitive to it, so I've used the Radiant Tone line without any issues, but it is quite strong."

How to Layer Your Skincare Products in an Anti-Aging Skincare Routine

"I've looked at the research, the data, and it actually looks really good. I can't imagine it being as powerful as prescription hydroquinone, which is the ultimate lightning cream for dark spots. And that has to be prescribed and has to be under the supervision of a doctor with that particular ingredient. And I talked to doctors in Europe and also South America. They have enjoyed prescribing or recommending Thiamidol to their patients in the last few years since it's been available."

Morning vs Night Skincare: What Matters for Anti-Aging?

"There are things that you would do twice a day like say the new thiamidol based product by Eucerin, their new serum with thiamidol, a new ingredient they found that helps block tyrosinase and works on dark spots that actually used two to four times a day and I don't know how people can apply something four times a day. If you do that twice a day in your routine it looks like you have to do it pretty frequently for it to work. So just a heads up on that."

Cut or Keep: The Secrets to Fixing Your Dark Spots

"I hope Eucerin can take out the fragrance or just tone it down. A fragrance-free option would be great [...] because we never want to cause a rash that leads to dark spots and worsening hyperpigmentation. So I'd [...] have to cut this fragrance product, not thamol as a molecule or as an ingredient. That said, I've had patients truly happy with this to use on their breaks from hydroquinone because you can't use hydroquinone all the time."

Dr. Mamina

282k subs

~Yay

"Thiamidol is a newer depigmenting ingredient with solid published data. It works as a highly selective tyrosinase inhibitor. In Eucerin's Radiant Tone collection, this contains it at effective concentrations and it's very accessible and affordable."

Dr. Jenny Liu

324k subs

~Yay

"But licorice itself does have some brightening properties. I've used it with my retinol at night as well as my vitamin C in the morning and I have not gotten any irritation. When I struggle with hyperpigmentation, I probably just use the serum because it's got the most concentrated active. I have recommended it to many of my patients in clinic that are wanting a skin brightening product without a prescription."

Dr. Aanchal MD

3.49M subs

~Yay

"It has glycerin and hyaluronic acid, so all in all it's a really nice serum which helps in reducing dark spots. Thiamidol is really effective, and I feel that this is expensive, but if you are thinking of investing in something to improve your skin tone overall and improve skin quality, then I feel this serum is worth the price. You just have to use a very small quantity, just one pump on the affected area. I prefer to use it in the morning time [...] on the melasma patches."

208SkinDoc

2.10M subs

~Yay

"It was tested against hydroquinone and actually shown in a clinical trial to be as effective as four percent hydroquinone, without the risk of toxicity to the melanocytes or the risk of ochronosis. You use the serum twice a day, the sunscreen in the morning, and the moisturizer at night, and you'll see a significant reduction in pigment. There are some amazing before and afters I've seen on Reddit in the skincare addiction subreddit."

Dr. Vanita Rattan

1.23M subs

~Nay

"They've got alcohol plus their patented Tyro inhibitor and that's how they're selling it by selling it as has a patented ingredient but actually it's not going to be any more effective than the other tyro inhibitors we have over the counter and they've only using one of them. I mean I'm happy for you to try it but actually it is probably going to lead to drying of the skin and premature aging so I personally wouldn't."

Dr Dray

2.69M subs

~Nay

"Fragrance can commonly trigger stinging and burning, and personally I just did not care for the strong fragrance in Eucerin's facial care products like this dual pigment thiamidol serum. I could not use them long term, it got on my nerves."

What the evidence says.

Independent of what the gurus think, this is what the published research supports about the main active ingredients here.

Vitamin C

Topical vitamin C is an antioxidant with reasonable evidence for dullness and uneven tone. It breaks down in light and air, so how a product is formulated and packaged matters as much as the percentage on the front.

Source: DermNet

Humectants and emollients

Ingredients like these draw water into the surface layers and slow how fast it leaves. The evidence is for comfort, softness and hydration rather than for changing the structure of the skin.

Source: DermNet

Vitamin E

Vitamin E is an antioxidant, and it is often in a formula to keep the other ingredients stable rather than as the active itself. It pairs well with vitamin C, though on its own the evidence for visible change is limited.

Source: NIH, National Library of Medicine

Frequently asked.

What is Eucerin Radiant Tone Dual Serum with Thiamidol?

A dual-action serum with Thiamidol, a tyrosinase inhibitor designed to reduce dark spots and even out skin tone.

Is Eucerin Radiant Tone Dual Serum with Thiamidol worth it?

The gurus are split. 5 of the 8 gurus give it their stamp of approval while 3 would skip it, which lands it in the middle at a Guru Score of 72%.

What is Eucerin Radiant Tone Dual Serum with Thiamidol's Guru Score?

Eucerin Radiant Tone Dual Serum with Thiamidol holds a Guru Score of 72%. That is our read on how warmly the experts talk about it, based on the verdicts of 8 expert reviewers we have collected.