Quality at the core. We're so sure you'll love our products that we offer a 30-day money back guarantee. If you're not fully satisfied, you can return it for a full refund. True radiance for the taking. Tree of Life is all about clean, effective, attainable skincare — and we won't give you anything less. Directions: Apply Hyaluronic Acid Serum in the morning. Apply Retinol Serum followed by Hyaluronic Acid Serum in the evening. Apply 3-5 drops to clean, dry skin on face, neck, and décolleté. Use sunscreen daily, as retinol increases sun sensitivity. For best results, follow serums with a moisturizer. All of our products are cruelty-free, dermatologist-tested, and made for all skin types and tones. Plus, they're packed with thoughtfully-chosen ingredients you can feel good about. Radiance, found. Use the Hyaluronic Acid Serum in the morning to plump, soothe, and support elasticity. Use the Retinol Serum followed by the Hyaluronic Acid Serum in the evening to reduce the appearance of fine lines and wrinkles, fade the look of age spots, and hydrate the skin.