Suggested Hair Loss & Regrowth Spray Formula

Okay, I understand you want to create a spray to reduce hair loss and promote new hair growth, and you've proposed a formula.

Based on the information, the staff member correctly pointed out that Reservoir-Tech is not suitable for a liquid spray formula. Reservoir-Tech is designed to form a film on the skin to gradually release ingredients and does not dissolve in water or oil; it needs to be dispersed in a thicker base.

For a spray formula, you need ingredients that are soluble in the liquid base (water and alcohol in your case).

Let's review your proposed ingredients and suggest adjustments for a spray:

• Slim Coffee (Coffee Extract): This is a good ingredient for hair loss as it stimulates scalp circulation. The description recommends 3% for hair loss formulas. Your proposed 5% is slightly higher than the specific recommendation for hair loss but within the general usage range. We can adjust this to the recommended 3%.
• Biotin Express: This ingredient helps accelerate hair growth and strengthen hair roots. Your proposed 1% is within the recommended usage rate of 1-2%. The description also suggests adding Urea (around 5%) and Triacetin (around 0.5%) to help Biotin penetrate the skin better, and including UV protection as Biotin is light-sensitive.
• Reservoir-Tech: As mentioned, this is not suitable for a liquid spray. A better alternative for enhancing penetration in a water/alcohol base would be Dimethyl Isosorbide (DMI). DMI is a solvent and penetration enhancer suitable for water-soluble ingredients and is commonly used in hair and skin serums. The recommended usage rate for DMI is 1-10%, with 3% recommended for transporting ingredients. Let's replace Reservoir-Tech with DMI at 3%.
• Ethyl Alcohol: This acts as a solvent and can help with penetration. Your proposed 20% is within the acceptable range.
• Purified Water: This is your main solvent base. The percentage will be adjusted based on the other ingredients.
• Preservative: Essential for water-based formulas to prevent microbial growth. Your proposed 1% is a standard rate, but the specific type matters. Mild Preserved™ COS is a suitable broad-spectrum, water-soluble preservative that works in a wide pH range. Let's use 1%.

Here is a revised formula suggestion for a hair spray, incorporating suitable ingredients and recommended usage rates:

Suggested Hair Loss & Regrowth Spray Formula

• Coffee Extract: 3%
• Biotin Express: 1%
• Dimethyl Isosorbide (DMI): 3%
• Ethyl Alcohol: 20%
• Mild Preserved™ COS: 1%
• Purified Water: 72% (to make 100%)

Total: 100%

Additional Considerations:

• To potentially enhance the effectiveness of Biotin Express, consider adding Urea (around 5%) and Triacetin (around 0.5%). If you add these, you would need to reduce the Purified Water percentage accordingly.
• Since Biotin is sensitive to UV light, it is highly recommended to include a UV filter suitable for cosmetic formulas to protect the product's efficacy.

This revised formula uses ingredients suitable for a liquid spray format and includes a recommended penetration enhancer and preservative.