Task: Query_Product_Rank
Instruction: Evaluate each product title in the given list, assess its relevance to the given query, and then arrange the products in descending order of relevance, with the most relevant product at the top of the ranked list.

Input:
Query: biotin without gelatin
Product list:
A: Extra Strength Hair Skin and Nails Vitamins by Nature's Bounty Optimal Solutions, with Biotin and Vitamin B, Supports Skin and Hair Health, 150 Count
B: Nature Made Maximum Strength Biotin 5000 mcg, Dietary Supplement may help support Healthy Hair, Skin & Nails, 120 Softgels
Answer: B,A