Strengthening or Protein Conditioner

General Formulation:

1. Cationic Surfactants (5-10%): These act as the main conditioning agents and they help to adhere the proteins to the hair. Examples include Behentrimonium Methosulfate or Cetrimonium Chloride.

2. Hydrolyzed Proteins (2-5%): Examples are Hydrolyzed Keratin, Silk, or Wheat Proteins. These help to temporarily repair damage and strengthen the hair.

3. Humectants (2-7%): Substances such as Glycerin or Sodium PCA that help attract and hold moisture in the hair.

4. Emollients (2-7%): Oils or butters like Jojoba Oil or Shea Butter that provide additional moisture and shine.

5. Polyquaternium Polymers (0.2-2%): These are film-forming agents that can provide additional conditioning and help protect the hair. Examples include Polyquaternium-10 or Polyquaternium-7.

6. Preservatives (0.5-1.5%): Examples are Phenoxyethanol or Sodium Benzoate to prevent microbial growth.

7. Thickeners (0.2-1%): Ingredients such as Xanthan Gum or Hydroxyethylcellulose that increase the viscosity of the conditioner.

8. Fragrance/Essential Oils (0.2-1%): These are added for scent and additional beneficial properties for the hair and scalp.

9. pH Adjusters (0.1-0.5%): Substances such as Citric Acid or Lactic Acid that keep the product at a slightly acidic pH, which is beneficial for hair.

10. Deionized Water (to 100%): The remaining percentage is typically water.