The Redken Acidic Grow Full Hair Serum is a lightweight scalp and hair treatment designed to support fuller-looking hair while improving hydration and strengthening fragile strands. Formulated with Azelaic Acid and a 5% Hydrating Complex, it helps rebalance the scalp and reinforce the hair fibre for healthier-looking density.

Ideal for thin or thinning hair, this leave-in serum works at the roots to promote stronger-feeling hair while improving scalp comfort and manageability. Used as part of the Grow Full system, it helps create the appearance of thicker, healthier hair over time.

Key Benefits

• Supports fuller-looking hair from the roots
• Helps rebalance scalp hydration
• Strengthens fragile hair fibres
• Lightweight leave-in formula
• Improves scalp comfort and manageability
• Suitable for thin or thinning hair

How to Use

1 After washing and conditioning apply to damp hair
2 Spray directly onto the roots
3 Massage gently into the scalp
4 Do not rinse
5 Style hair as usual

Laura loves this product because it strengthens thinning hair at the roots while keeping the scalp hydrated and comfortable without heaviness.