Biotin-PEG4-propionicacid-500mg$150.00 Biotin-PEG4-propionic acid Product Catalog # Size Price (USD) Quantity Biotin-PEG4-propionicacid-500mg 271614-500MG 500 mg $150.00 - Biotin-PEG4-propionicacid-500mg quantity + For more size options, please click: Biotin-PEG4-propionic acid Add to cart Additional information Additional information Weight 0.0005 kg Size 500 mg