Function of Beauty is a brand that offers customizable hair care products, including shampoo, conditioner, and hair mask. The products are formulated with ingredients from nature and science, and the brand claims to use fewer, targeted, high-performing ingredients that work more effectively together. Here are some key details about Function of Beauty products:

Positive:

• Customizable: Customers can take a hair quiz to create a personalized formula based on their unique hair type, hair moisture level, and hair goals.
• Vegan: All products are 100% vegan.
• Safe: Every ingredient meets both US and EU cosmetic regulations, and each formulation is reviewed by an expert toxicologist.
• Cruelty-free: All products are cruelty-free and tested on humans, not animals.
• Recyclable: The products come in 100% recyclable bottles with reusable pumps.

Negative:

• Expensive: The products are more expensive than regular shampoo and conditioner.
• Negative reviews: Some customers have reported negative experiences with Function of Beauty products, including hair loss.

Ingredients or materials:

• Function of Beauty products are sulfate-free, paraben-free, and phthalate-free.
• The shampoo contains ingredients such as water, sodium lauroyl methyl isethionate, glycerin, and PEG-120 methyl glucose dioleate.
• The brand uses both natural and synthetic ingredients, and prioritizes natural ingredients whenever possible.
• Some of the exotic ingredients in Function of Beauty products include Tremella fuciformis sporocarp (snow mushroom) extract and Aphanizomenon flos aquae (algae) extract.

In summary, Function of Beauty offers customizable hair care products that are vegan, safe, and cruelty-free. However, the products are more expensive than regular shampoo and conditioner, and some customers have reported negative experiences. The brand uses both natural and synthetic ingredients, and prioritizes natural ingredients whenever possible.