Using neem powder for acne is another common recommendation that you may have seen on some acne home remedy sites.
Why and how does it work?
The neem powder that the sites refer to is neem leaf powder. It can be used in several ways.
One way to use neem powder for acne is to make a herbal tea from it. A warning: neem tea is very bitter!
To find out why neem tea may be of benefit if you struggle with acne, read the page about the use of neem capsules for acne.
Neem capsules also contain neem leaf (most likely in the form of neem leaf powder). The benefits and limitations of using neem powder for acne are the same as for neem capsules.
Regarding the amounts to take, it is difficult to give recommendations. I address the question of safety and side effects of internal use of neem on this page about neem leaves. Neem is a natural product and as such the quality and potency will vary. Start with a little and see how you react, and don't overdo it.
Neem tea made from neem leaf powder can also be used externally, for example to rinse your face or to make neem leaf paste or other neem face masks. You could also add the neem powder itself to a face pack, and if you are into soap making you can add it to soap and make your own neem acne soap.
Be aware that it's easy to irritate your skin when using face packs, especially if you leave them on too long and they start to dry. Avoid anything that may irritate your skin! It's one of the most important rules for acne skin.
Similarly, neem soap for acne has to be very, very mild. You don't want to strip your skin of its natural oils. It would only react with increased oil production and make acne worse.
All the points I just touched on I already addressed in more detail on the previous pages. So if you haven't done so already, read them and it should be easy to see where and how in all that you can use neem powder for acne.