1.What improvements should I see in my skin after introducing retinol serum? You can expect firmer, plumper skin with diminished fine lines and wrinkles. Retinol enhances the production of collagen and stops it from breaking down. It also speeds up the skin cell regeneration cycle to encourage a smoother, more even complexion. Retinol can also stop the process which makes pigment in the skin, reducing spots and revealing a bright and even skin tone. 2. At what age should I start using retinol? You can begin to add retinol to your skincare regimen in your late 20s. 3.When I can see notice a difference? You should begin to notice a difference after 4 weeks, but significant skin changes may take up to 3 months. 4. Is retinol suitable for all skin types? All skin types normally benefit from retinol in the nighttime routine. Even blemish-prone skin can benefit from the power of vitamin A. By speeding up the skin cell renewal process, retinol clears out clogged pores which could cause blemishes, making it a good choice for nearly everyone.