Best INGU Products
INGU on Reddit, in one place — 3 mentions across 1 product, from r/SkincareAddiction and more
3
Recommendations
Reddit’s top pick from INGU

Niacinamide brightens quickly and improves hyperpigmentation; Redditors report noticeable results.
Community take
INGU’s Brightening Crystal Serum is praised for visible brightening, including improvement in under-eye hyperpigmentation. Some users report results after one use, while others say the effects held up over a month and beat products they had tried before.
67%
positive
Pros
- Brighter skin reported after one use
- Noticeable under-eye hyperpigmentation improvement
- Month-long results beat previous products
Real Reddit threads about INGU
“INGU Brightening Crystal Serum”
Positive
“Ingu’s brightening crystal serum. Been using it for about a month and the difference is noticeable. Much more effective than other products I’ve used before.”
Positive
“and the INGU Brightening Crystal Serum.”
Mentioned
“What u wish I had purchased: INGU skincare products”
Mentioned
“Ingu Brightening Crystal Serum”
Positive
“And I was also wondering if I should buy the Numbuzin No. 5 Vitanin C and Glutathione serum since my Ingu one is nearly finished”
Positive