Redken Acidic Grow Full System Density Shampoo 300ml
Redken Acidic Grow Full System Density Shampoo is a shampoo developed for fine hair lacking density, designed to gently cleanse while helping rebalance and hydrate the scalp.
Its pH-balanced formula helps cleanse the hair and scalp without stripping the protective lipid barrier, leaving the scalp feeling comfortable and hydrated. After washing, the hair feels refreshed and has an instant sensation of increased volume.
As part of the Redken Acidic Grow Full System, this shampoo prepares the hair and scalp for the other products in the range, supporting a complete routine designed for hair that looks fuller and feels more resistant to breakage.
What is Redken Acidic Grow Full System Density Shampoo used for?
The Density Shampoo is formulated for the specific needs of fine, low-density hair, combining cleansing with scalp care and a volumising effect.
Its main benefits include:
- Gently cleanses the scalp and hair.
- Helps rebalance and hydrate the scalp.
- Helps preserve the scalp’s protective lipid barrier.
- Provides a feeling of a healthier, more comfortable scalp.
- Creates an instant sensation of increased volume.
- Helps leave hair feeling softer.
- Prepares the hair for the rest of the Acidic Grow Full System.
- Features a pH-balanced formula.
According to Redken’s testing, the complete routine provides 2x stronger hair and 2x less breakage, compared with shampoo without conditioner. The brand also reports a reduction in hair loss caused by breakage, as well as improved softness and a healthier-feeling scalp.
Who is it suitable for?
Redken Acidic Grow Full System Density Shampoo is particularly suitable for people with fine, fragile or low-density hair who want a routine that addresses both the hair and scalp.
It can be a good choice if you are looking for:
- Hair with a fuller-looking appearance.
- Effective yet gentle cleansing.
- A more comfortable and hydrated-feeling scalp.
- Care for hair that is prone to breakage.
- A routine specifically designed for fine hair.
- Complementary products to support the appearance of density and hair strength.
It is important to distinguish breakage from hair loss at the root. The Acidic Grow Full System claims relating to reduced hair loss refer specifically to hair loss caused by breakage, rather than a medical hair-loss condition.
Key ingredients
The formula combines several ingredients selected to support the care of the hair and scalp.
Caffeine
Caffeine is included in the formula and is commonly used in cosmetic products designed for scalp and hair care.
Azelaic Acid
Azelaic Acid is part of the formula and contributes to the scalp-care approach of the product.
Salicylic Acid
The formula also contains Salicylic Acid, an ingredient commonly used in products designed to cleanse and care for the scalp.
Citric Acid and pH-balanced formula
Citric Acid is included in the formulation and contributes to its overall composition and pH adjustment. The shampoo’s pH-balanced formula is designed to provide effective cleansing while maintaining scalp comfort.
How to use Redken Acidic Grow Full System Density Shampoo
Apply a small amount of shampoo to wet hair.
Massage gently into the scalp and hair until it lathers, then rinse thoroughly.
For best results, Redken recommends following with Acidic Grow Full System Density Conditioner.
The amount used can be adapted according to your hair length, density and cleansing needs.
Discover the Acidic Grow Full System routine
For a more complete approach to fine and low-density hair, the Density Shampoo can be combined with the other products in the range.
- Acidic Grow Full System Density Shampoo: Start by gently cleansing the scalp and hair while helping maintain a hydrated, comfortable feeling.
- Acidic Grow Full System Density Conditioner: Follow with the Density Conditioner to help condition and leave the hair feeling softer.
- Acidic Grow Full System Leave-In Serum: The Leave-In Serum complements the routine with a leave-in treatment for additional hair care.
- Acidic Grow Full System Density Spray: Finish with the Density Spray to complete the routine and support the appearance of fuller, denser-looking hair.
Using the products together allows you to follow the complete routine developed by Redken for fine, low-density hair.
A simple routine for fine hair
During your wash routine:
- Thoroughly wet the hair.
- Apply Acidic Grow Full System Density Shampoo.
- Massage gently until it lathers.
- Rinse thoroughly.
- Apply Acidic Grow Full System Density Conditioner.
- After rinsing, apply the Leave-In Serum according to its instructions.
- Finish with the Density Spray.
For the best results, consistency is key, particularly when your goal is to improve the appearance and resilience of fine, fragile hair over time.
Why Choose Redken Acidic Grow Full System Density Shampoo?
Redken Acidic Grow Full System Density Shampoo is a targeted choice for fine, low-density hair, combining gentle cleansing with specific scalp-care benefits.
Its pH-balanced formula helps maintain scalp comfort, while ingredients such as Caffeine, Azelaic Acid and Salicylic Acid complement the formula. As part of the Acidic Grow Full System, the shampoo prepares the hair for the other products in the range and contributes to a routine focused on fuller-looking hair and reduced breakage.
If you’re unsure which Redken routine is right for your hair or how to combine the Acidic Grow Full System products, leave your question in our Q&A section. We’re happy to help you find the routine that best suits your hair’s needs.9



















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