There are two Nutra hair products mentioned in the search results: Nutra Peptide Shampoo and Nutrafol Womens Hair Serum. Here are the details, positive and negative aspects, and ingredients or materials of each product:

Nutra Peptide Shampoo

• Details: This shampoo is sold on Amazon and is free of phthalates, gluten, mineral oil, animal-derived ingredients, formaldehyde, oxybenzone, petrolatum/petroleum. It is cruelty-free, silicone-free, and vegan.
• Positive aspects: The shampoo is free of harmful chemicals and is vegan and cruelty-free.
• Negative aspects: There is no information available on the effectiveness of the shampoo in promoting hair growth or improving hair health.
• Ingredients or materials: No specific ingredients are mentioned in the search results.

Nutrafol Womens Hair Serum

• Details: This serum is sold on Amazon and is clinically tested to promote visibly thicker and stronger hair. It is vegan, lightweight, and fast-absorbing.
• Positive aspects: The serum is clinically tested and is vegan, lightweight, and fast-absorbing.
• Negative aspects: The serum is relatively expensive.
• Ingredients or materials: The serum contains Ashwagandha Exosomes, Irish Moss Peptides, and Sea Buckthorn. Nutrafols supplements are powered by 20+ ingredients that target root causes of thinning to improve hair growth through whole-body health. Some of the ingredients include Ashwagandha, Saw Palmetto, Marine Collagen Peptides, and Tocotrienol Complex.