
If we had to pick our two favorite skincare ingredients, retinol and vitamin C would be the obvious answer. They’re the stars of the Protocol product range for a reason! Both are incredibly well-researched, with a multitude of skin-transforming benefits...
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Skin purging is a bittersweet phenomenon. It’s a “necessary” breakout that can occur in the weeks or months after you’ve started using a skin-renewing product. It’s better to know a purge might be coming before you start a potent retinoid...
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Have you ever noticed that your budget-friendly retinol cream is a little yellow? Or, if you tried our Enzyme-Active Retinol Serum, you’ll have noticed a very vibrant orange tint. What on earth is that color about? Simple - that’s just...
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Figuring out how to layer skincare can be really simple or it can be really complicated. It all depends on which products you want to use and why. We’ve already covered skincare routine basics, but what if your situation is...
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Ascorbic acid is the purest and most bioavailable form of vitamin C; aka your friendly neighborhood skincare hero and radiance-maker. Would vitamin C by any other name still protect your skin from free radical damage? The answer is probably no....
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