I add a scoop to my clay mask to give it an antioxidant boost

Yes it can be mixed with anything thats the beauty of this. I mix it with sunscreen, then sometimes other antiaging serums, sometimes with other antiaging creams, it doesn't matter you can add vit C to anything. Plus it boosts collagen production and with the summers so hot the powder doesn't add any extra oiliness. So you really can't go wrong with it. Its a staple for me.

I mix my powder with my serums. I don't like to mix with moisturizer since it has substance already. Mixing it with my serums makes it more substantial in substance instead of being watery, which I hate.

You definitely don't want to mix 1.5 scoops into your eye cream! That would be way too much. Since the powder is nearly 100% Vitamin C, the conversions are easy: if you add 1 part powder to 1 part eye cream, you get 50% Vitamin C; when you add 1 part powder to 4 parts eye cream, you get 20% Vitamin C.

Most research shows that around 18-20% Vitamin C gives you the maximum efficiency, so using more powder than that is a waste. Basically, I would look at how much eye cream you're going to apply, and add about 1/4 of that amount of powder (giving you 1 part Vit C, 4 parts eye cream, or 20% Vit C). Sorry for all of the math, but I hope that it is somewhat helpful!

Cheers!

i see that sephora's website says to use 1 1/2 scoops but the package says 1/2 to 1 scoop... not sure about the inconsistency

Not more than one scoop at a time. I wouldn't use it around the eyes. You can always contact Philosophy directly for more precise answers.

I love Josie Maran's sunblock. I have used this powder in it, and I would not recommend mixing them! First off, the powder makes the sunblock VERY watery, to the point that it's hard to apply. I mix them in a 1/8 teaspoon (to ensure I'm applying enough), and I'm literally pouring it onto my face. Secondly, when the watery sunblock dries on my face, it is very sticky and flaky.

I HATE what this powder does to the texture of the JM sunblock. I'm only using it until I buy a designated ascorbic acid serum. If you're set on using this powder, I would apply it with a serum or moisturizer before putting on the sunblock--I've had a little more luck with mixing it into these products. On the bright side, if you don't mind the texture, there shouldn't be any negative ingredient interactions between the products, and the Vitamin C will actually add a small boost in UV protection.

Cheers!

Yes

If you use it in the day you MUST mix it with sunscreen otherwise it will do more damage than good. I find that it is ideal when mixed with night cream. I only use it at night to stretch the product since it's kind of pricey, and I get compliments on my skin almost daily.

I've been using this for 3 years and I put it all over my face (mixed with When Hope is Not Enough Serum). I have not had any problems.

I would use with lower percentage than on the face and only in the outer corners of the eyes. You have to mix fresh daily do with the eye cream you would use like 1/10 of the scoop or something. I used once close to the eyes while applying on the face and it was a bit irritating.

I use this with Origins skin brightening serum (Brighter by Nature) and it works GREAT!

I have used this with serum and moisturizers alike. I have also used origins. Maybe you test it on a part of your neck. People all have different skin and allergies. This works good for me in all my topical products.

As the previous reviewer stated, it is 99.8% Vitamin C. The percentage that you apply depends on how much powder you add to your serum/moisturizer. For instance, to get 10% Vitamin C, you have to add 1 part powder to 9 parts moisturizer/serum. From the research I've read, ascorbic acid (the Vitamin C in this product) reaches its maximum efficiency at 20%, and anything more than that is kind of a waste. Therefore, at most I'd use 1 part powder, 4 parts moisturizer.

Also, the size of the scoop is 1/32 of a teaspoon, or 1/4 of a 1/8 teaspoon measure. This conversion can come in handy if you want to be precise when mixing. (I mix the powder every day into my sunscreen using a 1/8 teaspoon measure).

Sorry for all of the math, but I hope that helps! Cheers!

Sorry, I dont know.

The bottle contains about 50 scoops, if my math is right. (One bottle is 0.25 oz, or 1.5 teaspoons, and the scoop is 1/32 of a teaspoon, therefore 1.5 x 32 is 48 scoops.)

It all depends on how many scoops you add to your products, and how many times you use it per day. I add one scoop per day to my sunscreen, so it should last me about two months. For serums, you'll probably need to use less, since they aren't as thick.

Sorry for all of the math, but I hope that helps! Cheers!

Usually a couple months...I try to use about 1/2 spoonful (the spoon thingie comes with it).

One bottle provides approximately 50 scoops, if my math is right. (One bottle is .25 oz, or 1.5 teaspoons, and the scoop is 1/32 of a teaspoon, so 1.5 x 32 teaspoons is 48 scoops).

I personally use about 1 scoop per day in my sunscreen, so it should last me around two months, maybe a little less. It all depends on how much you add, and how frequently you use it. It expires after about a year, and loses potency over time (especially when exposed to air and light).

Sorry for all of the math, but I hope that helps! Cheers!

A bottle of this stuff can last a long time because you use very little. My only concern is that air oxidizes vit. C and not sure of the potency of it after awhile.

Vitamin C provides a little bit of sun protection, since it can neutralize some of the high energy particles emitted by UV light. However, it definitely is not strong enough protection on its own. I'd add it to an SPF product to give you a little extra sun protection 'boost.'

Cheers!

No, I wish it did!

NOW Foods makes a very fine powder. Its 100% Pure Powder Vitamin C (Ascorbic Acid). Just make sure what ever brand you get is unbufferd.

Yes, it is basically the same as the loose (pure, unbuffered ascorbic acid) available at health food stores. Just make sure it is pure ascorbic acid powder (no fillers) and in the loose powder form. You will probably need to grind it to a finer consistency (otherwise it feels grainy & will not dissolve). I use a morter and pestle. I use it daily in my serum following the same as the directions for this product. Pure vitamin c (ascorbic acid) is great for your skin!!