# CZTL - Ultra Pure Methylene Blue Solution (India store) > CZTL is a global brand of Ultra Pure USP Grade Methylene Blue Liquid Solution, a ready-to-use 0.1% w/v solution in sealed 100 ml amber dropper bottles. CZTL sells in the United States, Canada, the United Kingdom, Europe and Australia; this website (cztl.in) is the store for India, where every order is shipped locally with free delivery. ## Key facts - Product: Methylene Blue liquid solution, 0.1% w/v, made with USP grade Methylene Blue, ready to use. - Bottle: 100 ml amber glass dropper bottle, sealed. Larger packs contain several 100 ml bottles. - Shipping: free on all orders, shipped locally within India to serviceable PIN codes; usually dispatched in 1 to 2 working days, delivered in 3 to 7 working days. - Prices: in Indian Rupees (INR), GST included, GST invoice with every order (add GSTIN at checkout for business purchases). - Payment: secure online payment by Razorpay (UPI, cards, net banking and more). - Returns: damaged, wrong or missing items are replaced or refunded if reported within 48 hours of delivery. Opened bottles cannot be returned. - Contact: support@cztl.in or https://cztl.in/contact. Bulk orders: ask for a quote on the contact page. - International customers: https://cztl.bz ## Products and prices (India) - [CZTL Methylene Blue 0.1% 100 ml Solution](https://cztl.in/products/methylene-blue-100ml): Rs 394 (MRP Rs 450), 1 x 100 ml, Rs 394 per 100 ml. CZTL ready-to-use 0.1% w/v Methylene Blue solution, 100 ml. Made from ultra high purity USP grade Methylene Blue and batch tested. - [CZTL Methylene Blue 0.1% 200 ml Solution](https://cztl.in/products/methylene-blue-200ml): Rs 592 (MRP Rs 700), 2 x 100 ml, Rs 296 per 100 ml. CZTL ready-to-use 0.1% w/v Methylene Blue solution, 200 ml packed as 2 x 100 ml bottles. Made from ultra high purity USP grade Methylene Blue and batch tested. - [CZTL Methylene Blue 0.1% 800 ml Solution](https://cztl.in/products/methylene-blue-800ml): Rs 2,120 (MRP Rs 2,800), 8 x 100 ml, Rs 265 per 100 ml. CZTL ready-to-use 0.1% w/v Methylene Blue solution, 800 ml packed as 8 x 100 ml bottles. Made from ultra high purity USP grade Methylene Blue and batch tested. - [CZTL Methylene Blue 0.1% 900 ml Solution](https://cztl.in/products/methylene-blue-100ml-9-bottles): Rs 2,352 (MRP Rs 3,200), 9 x 100 ml, Rs 261 per 100 ml. CZTL ready-to-use 0.1% w/v Methylene Blue solution, 900 ml packed as 9 x 100 ml amber glass bottles. Made with USP grade Methylene Blue and double-distilled water, every batch quality checked. - Compare all pack sizes: https://cztl.in/products ## Pages - [About CZTL](https://cztl.in/about) - [Frequently asked questions](https://cztl.in/faq) - [Contact](https://cztl.in/contact) - [Shipping Policy](https://cztl.in/shipping-policy) - [Return and Refund Policy](https://cztl.in/return-refund-policy) - [Privacy Policy](https://cztl.in/privacy-policy) - [Terms and Conditions](https://cztl.in/terms-and-conditions) ## Frequently asked questions ### What is CZTL Methylene Blue solution? It is a ready-to-use 0.1% w/v Methylene Blue liquid solution, prepared from high purity Methylene Blue. It is available in four packs: 100 ml (1 x 100 ml), 200 ml (2 x 100 ml), 800 ml (8 x 100 ml) and 900 ml (9 x 100 ml). ### What is the difference between the pack sizes? All packs contain the same 0.1% w/v solution in sealed 100 ml bottles. The 200 ml pack has 2 bottles, the 800 ml pack has 8 bottles and the 900 ml pack has 9 bottles. Larger packs work out cheaper per 100 ml. ### What does USP Grade Methylene Blue mean? USP refers to the United States Pharmacopeia purity standard. USP grade means the Methylene Blue is tested and impurities such as heavy metals are at or below the limits set by USP. ### Is every batch tested? Yes. Batches are checked before dispatch. Every bottle is prepared from Ultra Pure USP Grade Methylene Blue to a controlled 0.1% w/v concentration. ### Do I need to dilute the solution? The solution is supplied at 0.1% w/v and is ready to use as supplied. Always follow the directions on the product label. ### How do I make a 0.1% w/v solution from powder? Dissolve 1 g of Methylene Blue powder in 1 litre of water to make a 0.1% w/v solution. Our liquid solution saves you this step. ### How should I store the solution? Keep the bottle tightly closed in a cool, dry and dark place away from direct sunlight, ideally between 15 and 25 °C. Keep out of reach of children. Methylene Blue is a stable compound with a long shelf life. ### How can I order bulk quantities? For bulk or business orders, write to support@cztl.in or use the contact form and our team will share a quote. ### Which payment methods do you accept? We accept UPI, credit and debit cards, net banking and wallets through Razorpay. All prices are in Indian Rupees and include GST. ### My payment failed but money was deducted. What should I do? If your order was not confirmed, the amount is usually reversed automatically by your bank within 5 to 7 working days. If it is not, write to us with your payment details and we will help. ### Do you charge for shipping? No. Shipping is free on all orders within India. ### How long does delivery take? Orders are usually dispatched within 1 to 2 working days and delivered within 3 to 7 working days of dispatch, depending on your location. ### How do I track my order? Once your order ships we email you the courier name, tracking number and tracking link. For any help, write to support@cztl.in with your order number. ### What if my product arrives damaged? Contact us within 48 hours of delivery with your order number and photos or an unboxing video. We will send a replacement or issue a refund. ### Do you sell on Amazon? Yes, CZTL products are also available on Amazon India. Always check that the seller is CZTL to avoid counterfeit products. ### How do I contact CZTL? Email support@cztl.in or use the contact form on this website. We reply within 1 to 2 working days.