Evening Youth Serum by California Biology is a restorative nighttime formula designed to support smoother, firmer, and more youthful-looking skin. Created for evening use, this serum works while you rest to help refine texture, improve tone, and promote a refreshed appearance by morning.

The lightweight, fast-absorbing formula delivers targeted nourishment without heaviness, making it ideal for layering before moisturizer. With consistent use, skin appears more balanced, smoother, and revitalized.

Packaged in an amber glass bottle to help protect potency and freshness, Evening Youth Serum is a refined addition to any evening skincare routine.