View cart “Sildenafil Citrate” has been added to your cart. Methylene Blue$29.99 10 mg/ml *** For Research Purposes Only/ Not For Human Consumption *** Out of stock SKU: Methylene Blue Categories: Nootropics, Research Chemicals Related products Avanafil $47.99 Add to cart Pramipexole HCL $36.99 Add to cart Liothyronine Sodium (T3) $34.99 Add to cart Super Modafinil (S)-CE-123 $49.99 Read more