No.5 Vitamin Concentrated Serum on TikTok

The creators’ take

From 7 TikTok videos3 sponsored, marked with outlined numbers

Creators say it is more a niacinamide and tranexamic acid serum than a vitamin C one, since vitamin C sits low on the ingredient list 1. Sponsored creators say it suits dark spots and dullness, with one rating it 100 out of 10 2 3 4. Unsponsored creators are mixed: a pharmacist rated it 6 out of 10 5, while another reports more even skin after two weeks and says it suits sensitive and oily skin 6. One sponsored creator says it fits dark spots with uneven tone better than stubborn spots 4.

Sponsored means the creator disclosed a brand partnership or the video ran as a paid ad.

Videos open on TikTok in a new tab.

“This is actually not a vitamin C serum.”

“This combines multiple brightening ingredients in one formula.”

“Dull skin, numbuzin. It has glutathione. It will brighten up your skin.”

“Dark spots & dull, uneven skin tone? numbuzin No.5!”

“Numazen number 5+ Glutathione Vitamin Concentrated Serum, 6 out of 10.”

“it has a lightweight texture and it absorbs easily into the skin”

“The one from @numbuzin Official has really been a game changer”

Quotes are taken word for word from what each creator says in the video or writes in its caption.

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