Love this product. Have been using it for few years.

This serum works Great. It really reduced my dark sport and my wrinkles. It feels fresh and it is easy to apply. My skin feels so fresh and rejuvenated. The only down side is its small quantity for the price.

Easy to Apple and iT really works,i use it at night and my skin feels really soft and it makers The dark spot lighter.i really would recommend this product

This serum is good for everyday usage since the texture is just about right. I like the fact that this product is not too heavy on my skin and yet leaves my skin completely moisturized.

I was introduced to Blue Therapy products in Europe, along with other Biotherm products, which are not available in the US. Thankfully, I am able to buy Blue Therapy Serum here and I use it morning and night. With this product I don't need a moisturizer or cream, the serum alone is all I use and it leaves my skin in beautiful condition. I highly recommend this product.