5.0 out of 5 stars Good quality

M.S. · July 15, 2025

Good quality helped with bug sensitivity

5.0 out of 5 stars Awesome to use in face products!

R. · May 5, 2017

I love this stuff for what it does to my skin! I use it topically in my face products. I mix it in toners and lotions (sometimes even my spf). Topical niacinamide has been proven to be a somewhat effective anti-aging/acne treatment in numerous studies (so have vitamin c and green tea). I like it because i have sensitive skin but I find it calming and it definitely fades skin discoloration over time. I also feel like it makes my skin *behave* better (stays better moisturized but not greasy), if that makes any sense. I know products from Olay and Cerave (to name a few) contain niacinamide but they break me out so I can't use them.Most studies used it at a 5% concentration (so 1 to 20 ratio *thank you Viking Fan) and it works best at a PH of 5-6 (so don't bother mixing it with AHA or BHA). You don't have to mix it with anything special; you can just mix it with water and use it as a toner (if you don't use a preservative you should make it every day lest it go bad on you). Keep in mind, if you go any higher than 5% you may get a flushing effect--in fact you might get a flushing effect even at 5% if you're sensitive to it (some people are and while some people eventually grow more tolerant some people just can't use niacinamide without a bad reaction).Lots of people like to mix it with with N-Acetyl Glucosamine Powder (25 gm) Reduces hyperpigmentation Improves skin tone.To give you some ideas of how to use it, this has always been a popular recipe on Makeupalley dot com:"* 85 ml distilled witch hazel (Boots brand right now, which contains approximately 14% alcohol, as such, no preservative is required)* 10 ml vegetable glycerin* 5 g (approximately 1.5 teaspoons for those who don't/won't weigh it out - I prefer to weight it) niacinamide powder."--(i think it's "JoshuaP's" recipe)This is another Bolo reviewer's recipe ("Gattu"):5 tsp. rose water10 drops of licorice extract½ tsp. Glucosamine (5%) --BulkSupplements½ tsp. Niacinamide (5%) --Nature and Nurture½ tsp. Glycerin½ tsp aloe gel ( I almost took 1 tsp)2 tsp vitamin C ester powder (20%) --BulkSupplementsOf course you can also just mix it with water and spray or pat on your face... Sometimes i've mixed it with other products and toners (like Thayer's Witch Hazel). Sometimes i've even just scooped a bit out and mixed it with the daily squirt of my face lotion or SPF (very unscientific, of me). This stuff dissolves really well, so its really versatile.

5.0 out of 5 stars Fine powder-take 1/5 tsp for 500 mg

K. · November 2, 2023

The powder mixes okay & the dosage is easy at 1/5 teaspoon. I got a nice set of stainless measuring spoons in small measures on AMZ. I'm not a fan of the flush & prefer this form. I have taken Niacinimide capsules for cardiovascular benefit but now want to add the powder to my skincare. This is a good value. I have purchased from Bulk S. a few times starting with DL Methionine for my male cat a few yrs ago. Thank you so much!

4.0 out of 5 stars Don’t know if this is the taste!

P.d.b.t.p.I.d.k.w.i.i.b.I.g.r.s.I.f.l.I.w.g.t.p.o.A.a.m.b.s.t.r.l.t.A.I.s.s.p.b.�.I.d.u.!.I.a.b.b.b.n.t.b.t.i.t.f.t.I.e.s.a.h.f.�.p.A.n.t.s.s.t.p.o.t.c.g.s.I.s.d.k.i.I.h.t.r.t.t.e.r.I.j.t.s.m.t.s.i.i.h.H.n.h.t.m.m.l.s.t.p.a.I.f.l.i.I.w.g.l.i.a.t.s.s.a.m.h.b.s.f.r.h.t.a.t.s.y.g.b.u.t.p.P.I.d.w.a.o.e.g.t.t.i.r.s.�.A.d.s.a.i. · January 11, 2025

I like this product the only thing I don’t like about it is the taste is really sower! I never try this product before this is my first time using this, but just the after taste and the Bitterness don’t like it but after all good product. 🤷‍♀️

5.0 out of 5 stars Awesome product for DIY serum

G. · March 15, 2017

I had heard great things about Niacinamide from youtube gurus about how it helps lighten dark spots and brighten up your skin. So I ordered this product from Bulk supplements and now that its been more than a month of me using it in my DIY serum, I can definitely say this is working as per my expectations or i would say maybe more. But it could be also because of the combination of other ingredients(also from Bulksupplements) in the serum that I add in the serum which might be making it work even more.Here's my DIY recipe for "Vit-C + Niacinamide+N-Acetyl Glucosamine Serum":5 tsp. rose water10 drops of licorice extract½ tsp. Glucosamine (5%) --BulkSupplements½ tsp. Niacinamide (5%) --Nature and Nurture½ tsp. Glycerin½ tsp aloe gel ( I almost took 1 tsp)2 tsp vitamin C ester powder (20%) --BulkSupplements**Please do your own research before using the above recipe as I am in no way a chemist or anything. I came up with this recipe by researching online as there are tons of DIY niacinamide recipes posted and this is what suits my needs.With this above combination, I was able to see instant brightness on my face within a week which was otherwise very dull looking all the time with dark spots left behind from acne. FYI - I have Asian-Indian medium-olive skin with acne spots and some clogged pores.After a month of using this serum my skin feels smoother day by day and not to mention the scars that are fading dramatically. Also I do notice my pore size getting smaller as well and even my husband commented on my skin improvement which let me tell u says a lot since he never notices anything.I am very very very happy with the results and i will definitely be buying my supplies once I run out of it from bulksupplements as I know for sure their products are in pure form and they WORK.

5.0 out of 5 stars Good Product & Company

K.L. · May 27, 2015

I recently read how intake of B3 (as Niacianamide) can cut the incidence of common skin cancers by a third. As well, it seems that topical application of Niacianamide can undo sun-damage in the skin. I'm sure one could ingest this product, but I didn't buy it for that (I worry about dosage amounts), but rather, I bought this so I could add it to various lotions, shampoos, hair-conditioners, etc., to help protect and just generally help sun-damaged skin. I'm impressed with this product and company. If you buy Niacianamide as tablets, there are a lot of other ingredients (binders, etc.). This is, evidently, pure and is water-soluble, so it readily mixes with any water-based liquid, such as lotions, shampoos, etc. I recommend for anyone interested in making home-made (and thus, purer and cheaper) skin products that evidently have a beneficial effect on sun-damaged skin. I like that it's not expensive, and you get a lot when you buy it in bulk. I like also that it comes in a no-nonsense convenient re-closable foil packet, so it's easy to use, easy to close, put-away, and store.