The Ordinary via Amazon has
1-oz The Ordinary Niacinamide 10% + Zinc 1% Smoothing Serum on sale for
$5.10.
Shipping is free with Prime or on $35+ orders.
Thanks to community member
theon105 for finding this deal.
Features:- Niacinamide 10% + Zinc 1% visibly improves skin radiance and smooths texture in one week.
- Lightweight water-based serum that reinforces the skin barrier and provides hydration in as little as 7 days.
- High 10% concentration of Niacinamide (Vitamin B3) and 1% Zinc PCA to help control oil in 3 days.
- Clinical testing shows appearance of pores is minimized in 4 weeks, improving signs of congesting.
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Also too much Niacinamide can also irritate skin so make sure you actually need it if you are already using other products that potentially have it already.
One thing to check is if any of your other products contain niacinamide. I recently got the CeraVe AM lotion which has it, though it doesn't say a percent ):, but while I use that I switched to only using this in my PM routine.
Niacinamide is a form of vitamin B3. Products like this containing it will have likely been produced via chemical reaction, but it also naturally occurs in things like yeast, meat, milk, some vegetables, etc.
Like anything you can be allergic or have a reaction based on your own custom biochemistry. It happens, but is fairly rare which is why niacinamide is considered a pretty safe ingredient and is often put in many skin care products.
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