![How to Judge a Skincare Product](http://protocol-lab.com/cdn/shop/articles/Protocol_Blog_Judge_{width}x.jpg?v=1696642406)
How can you tell if a skincare product is great, or if it just has great marketing? In this guide, we’ll give you the lowdown on how we judge skincare products.
![Retinol is yellow or orange due to vitamin c](http://protocol-lab.com/cdn/shop/articles/Why_Is_Retinol_Yellow_{width}x.jpg?v=1705990838)
Did you ever wonder why your retinol serum is yellow? In fact, the more vibrant the pigment, the more potent your retinol product can be. Read this post to learn why!
![Sunscreen provides protection from the harmful effects of the sun such as UV-induced skin cancer, sunburn, and photoaging, and its usage is important as it can save one's life.](http://protocol-lab.com/cdn/shop/articles/Sunscreen_1_{width}x.jpg?v=1682536816)
The best sunscreens offer comprehensive protection against both UVA and UVB and are pleasant enough that we’ll want to keep using them. Discover our team’s favorite SPF products.
![Meme "Skincare addicts be like - I am once again asking for effective concentrations of active ingredients"](http://protocol-lab.com/cdn/shop/articles/image_28_{width}x.png?v=1682536691)
Learn how to uncover the 1% line in skincare with a simple keyboard shortcut. This skincare shopping hack helps us uncover the percentages of active ingredients in a product.
![fastest retinol to get rid of wrinkles](http://protocol-lab.com/cdn/shop/articles/Carmen_042221_Protocol_SS2120402_{width}x.jpg?v=1682536123)
There’s almost no room for debate - it’s well accepted that no cosmetic ingredient beats retinol for wrinkles. If you’ve been curious about adding retinol to your skincare routine to reduce or prevent fine lines and other signs of photoaging, this post is for you.