La Roche-Posay Glycolic B5 Serum: a Guru Score of 84%

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.

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Dr. Daniel Sugai

720k subs

✓Approved

"You see L Ro B has thrown txa and their glycolic B5 that one's good for dark spots"

Dr Dray

2.68M subs

✓Approved

"This is a good serum from them the glycolic B5"

All 2 takes from Dr Dray

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"This is a good serum from them the glycolic B5"

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"Personally I'm a fan of this one, the Glycolic B5 Serum, it has a lot more going for it. It's got kojic acid which is helpful for dark spots, kojic acid is also a chelator so it'll help potentially minimize the reaction of iron to form free radicals upon exposure to environmental stressors, and those free radicals are what can aggravate acne as well as drive more stubborn hyperpigmentation."

Dr. Jenny Liu

321k subs

✓Approved

"If you're struggling a lot with onion skin tone once you're on treatment that I really recommend is from Larose Posay their glycolic B5 that contains 10 glycolic acid as well as tranexamic acid and kojic acid"

Dr. Shereene Idriss

1.72M subs

✓Approved

"La Roche-Posay Glycolic B5 Serum is part of the chemical exfoliants category. If you're going to be using a glycolic acid, you do not need to use this serum on top of another glycolic product because it's the same ingredient. It does smell a little strong, but La Roche-Posay is one of those brands that I really do stand by. I think that they are great."

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All 2 takes from Dr. Shereene Idriss

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"I love this product. I think it is great. It gives you an instant glow. It does feel a little bit sticky and tacky, but I don't mind it for the fall. In summertime I would not like this feeling because everything is way too humid, but in wintertime it's not bad. Glycolic acid is one of the best exfoliating acids if you're looking for a rejuvenating glowy instant gratification look. It's fortified with panthenol, which is vitamin B5, which is a stronger humectant, so even though it is an exfoliating chemical, it's also going to help hydrate your skin. It has tranexamic acid as well as kojic acid to help minimize hyperpigmentation."

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"La Roche-Posay Glycolic B5 Serum is part of the chemical exfoliants category. If you're going to be using a glycolic acid, you do not need to use this serum on top of another glycolic product because it's the same ingredient. It does smell a little strong, but La Roche-Posay is one of those brands that I really do stand by. I think that they are great."

What the evidence says.

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

Frequently asked.

What is La Roche-Posay Glycolic B5 Serum?

A chemical exfoliating serum with glycolic acid for gentle exfoliation, kojic acid to target dark spots, and panthenol to soothe skin.

Is La Roche-Posay Glycolic B5 Serum worth it?

Yes. All 4 gurus who reviewed it give it their stamp of approval, for a Guru Score of 84%.

What is La Roche-Posay Glycolic B5 Serum's Guru Score?

La Roche-Posay Glycolic B5 Serum holds a Guru Score of 84%. That is our read on how warmly the experts talk about it, based on the verdicts of 4 expert reviewers we have collected.