K-Secret Soul 1988 Serum: a Guru Score of 78% from 2 experts

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 Approved takes Critical takes Mixed takes Hide sponsored

✓Mixed

"This is a 15% niacinamide serum, so I wait until my skin is fully dry before applying it, because if you have moist skin it will absorb the applied skincare faster and I don't want to flood my skin with niacinamide. Not everybody has niacinamide sensitivity, some people can use these higher levels with no problem, but I'm a bit more sensitive and I find I can max out on niacinamide and irritate my skin, so that's the reason for the caution, if it works for you that's fantastic. This does feel nice though. It's a brightening product with a high level of niacinamide, but I see ingredients like squalane and panthenol which I feel are helping to explain that lovely texture. I expected the feel to match the sensation of most brightening products, but it felt more like a hydrating, moisturizing product."

Gothamista

684k subs

✓Approved

"It clearly brings my skin back to life I mean it kind of revives my complexion"

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.

Is K-Secret Soul 1988 Serum worth it?

Mostly yes. 1 of the 2 gurus who reviewed it give it their stamp of approval, for a Guru Score of 78%.

What is K-Secret Soul 1988 Serum's Guru Score?

K-Secret Soul 1988 Serum holds a Guru Score of 78%. That is our read on how warmly the experts talk about it, based on the verdicts of 2 expert reviewers we have collected.