[MattPO]

As for an alternative, you can try using Granactive Retinoid 2% Emulsion, which is a water-soluble, stable form of retinoid that has been shown to be effective in improving the appearance of fine lines, wrinkles, and skin texture. You can also look into other forms of Vitamin A such as retinol or retinaldehyde, which are also effective in promoting skin rejuvenation. It’s important to keep in mind that all forms of Vitamin A can be potentially irritating to the skin, so it’s best to start with a lower concentration and gradually build up to a higher concentration if needed. Also, always patch test and use sun protection when using Vitamin A products.

[MattPO]

Try using a different emulsifying agent, such as polysorbate 20 or cetyl alcohol, to improve the stability of the emulsion. The pH of the shampoo may be affecting the stability of the emulsion. Try adjusting the pH to a range of 5.5 to 6.5, which is the ideal pH for shampoos. If the problem cannot be solved through simple adjustments, you may need to reformulate the shampoo by changing the ingredients or their proportions.