Celebrated as the gold standard for skin renewal, retinol is a form of vitamin A that encourages faster cell turnover to reveal smoother, fresher skin. It works beneath the surface to support collagen production, softening the appearance of fine lines and wrinkles while refining uneven texture, enlarged pores and stubborn pigmentation.

For those with sensitive skin, or anyone new to the category, bio-retinols offer a gentle route to similar results. Plant-derived alternatives such as bakuchiol, bidens pilosa and cacay oil deliver visible smoothing and brightening benefits without the dryness or irritation sometimes associated with traditional retinol.

As retinol can increase sensitivity to sunlight, it's best applied in the evening and paired with a broad-spectrum SPF every morning. Whichever you choose, this transformative family of ingredients is the key to a clearer, more radiant and youthful-looking complexion.