Express UK mainland delivery costs £5.50 on orders under £50. Delivery is free when you spend £50 or more.

Some postcodes outside the UK mainland delivery area may be charged at a different rate. Your available delivery options and final cost will be shown at checkout.

Most UK mainland orders arrive on the next working day once they have been processed and dispatched. Delivery times are estimates and may vary during busy periods or due to circumstances outside our control.

Orders placed before our weekday dispatch cut-off are normally processed the same working day. Orders placed after the cut-off, on weekends or on bank holidays will be processed on the next available working day.

Our packing team does not operate over the weekend. Orders placed after the final weekly dispatch will be processed when the team returns on the next working day.

We’ll send you an automated email as soon as your order is on its way. You’ll also receive tracking updates from the courier, including an estimated delivery window where available.

Orders are sent using an express tracked courier service. Your dispatch email will include the courier details and tracking link for your order.

Check your tracking link first for the latest delivery update. If your parcel has not arrived within five working days of dispatch, check with your local sorting office and then contact us at info@chemical-warfare.com with your order number.

Saturday delivery is not currently available. Working-day delivery estimates exclude weekends and bank holidays.

International delivery is currently limited. We deliver to the Republic of Ireland, while wider EU and worldwide delivery is not currently available to direct customers. The delivery options available for your address will be shown at checkout.

For trade or wholesale enquiries, contact info@chemical-warfare.com.

Contact us as soon as possible at info@chemical-warfare.com. We’ll do our best to help, but once an order has entered processing or been dispatched, we may be unable to change or cancel it.

Email us immediately with your order number and the correct address. If your order has not yet been processed or dispatched, we may be able to update it. We cannot guarantee changes after an order has been placed.

Check your spam or junk folder and make sure you used the correct email address at checkout. If you still cannot find your confirmation, contact us with your name, delivery postcode and approximate order time.

Only one discount code can normally be used per order unless a promotion specifically states otherwise. Discount codes cannot be applied after an order has been completed.

Yes. Join the Chemical Warfare community to receive 10% off your first order, along with product updates, perks and special offers. Any exclusions will be shown with the offer.

Yes. Digital gift cards are available through our online store. Gift cards cannot be returned, refunded or purchased using Clearpay.

Restock dates vary by product. Sign up for our emails and use any back-in-stock option shown on the product page to be among the first to hear when it returns.

We offer a 14-day returns policy. To qualify, your item must be unopened, unused, in its original packaging and in the same condition in which you received it. You’ll also need your order number or proof of purchase.

Contact us before returning an item so we can confirm eligibility and provide the next steps.

No. For hygiene and safety reasons, we cannot accept supplements that have been opened, used or have a broken seal.

Email info@chemical-warfare.com with your order number, the item you want to return and the reason for the return. Please wait for confirmation before sending anything back.

Customers are responsible for return postage costs. Returned items remain your responsibility until they reach us, so we recommend using a suitable tracked service and keeping your proof of postage.

Once your return has been approved, send it to:

Contact us as soon as possible at info@chemical-warfare.com with your order number and clear photographs of the item and packaging. We’ll review the issue and explain the available resolution.

We’ll email you after your return has been received and inspected. If approved, the refund will be issued to your original payment method. Your bank or payment provider may then need additional processing time before the funds appear in your account.

We only replace items where they are defective or damaged. For other changes, return the eligible item in line with our returns policy and place a new order for the product you want.

The payment methods currently available will be displayed securely at checkout. These may include standard debit and credit cards, Klarna and Clearpay, subject to eligibility.

Yes, eligible UK customers can select Clearpay at checkout and split their purchase into four automatic instalments. Clearpay is subject to its own eligibility checks and terms, and is not available for gift card purchases.

Yes, Klarna is available as a payment option for eligible orders. Select Klarna at checkout to view the payment options available to you. Eligibility and approval are determined by Klarna.

Yes. Transactions are processed securely, and card transactions use 3D Secure where applicable. Chemical Warfare does not receive your full card details.

Once an approved return has been processed, the relevant payment provider will update your payment schedule or refund. The timing depends on the provider and your financial institution. Log in to your Clearpay or Klarna account for the latest status.

Our supplements are manufactured in-house at our UK facility using ingredients sourced from trusted suppliers.

Yes. Our labels clearly show the ingredients and amount of each component, so you know what is in the product and how to use it.

Yes. Every batch goes through quality testing for purity, potency and overall quality. Our facility also undergoes independent third-party inspections as part of our commitment to high manufacturing standards.

Keep products tightly sealed in a cool, dry place, away from direct sunlight, heat and moisture. Always follow any product-specific storage instructions on the label and keep supplements out of reach of children.

Some powdered ingredients naturally absorb moisture from the air, which can cause clumping. This does not necessarily mean the product is faulty. Check that the seal was intact, review the best-before date and follow the storage instructions on the label. If you are concerned, contact us before using it.

Use our Shop By Goals collections to explore products for muscle growth, weight management, endurance, health, recovery and hydration. Each product page explains its purpose, ingredients and directions for use.

Follow the directions on the product label and do not exceed the recommended daily serving. Instructions vary between products, so always check the label even if you have used a similar supplement before.

Some products can be combined, but you should check for overlapping ingredients and total daily amounts—especially caffeine and other stimulants. Never exceed the directions on the label. If you are unsure, speak to a qualified healthcare professional before combining products.

Caffeine content varies by formula. Check the ingredient panel and product page for the exact amount per serving. Avoid combining stimulant products, and consider a non-stimulant option such as Nitro Pump if you train late or want to limit caffeine.

No supplement is suitable for everyone. Check the full ingredient list and warnings before use. If you are pregnant, breastfeeding, taking medication, have a medical condition or are sensitive to any ingredient, consult a qualified healthcare professional before using a supplement.

Allergen information is shown on the product label and, where available, on the product page. Always check the packaging before use, as ingredients and manufacturing information may change. If you have a severe allergy and need more information, contact us before ordering.

Our performance supplements are intended for adults unless the product label clearly states otherwise. Always follow the age guidance and warnings provided on the packaging.

No. Food supplements should not be used as a substitute for a varied, balanced diet and a healthy lifestyle. Do not exceed the recommended daily serving.

Yes. Samples are available for selected products and flavours, subject to stock. Visit the Samples section of our website to see what is currently available.

Visit our Join The Team page to learn about the Chemical Warfare ambassador programme and submit an application. Applications are reviewed individually, and acceptance is not guaranteed.

Yes. Visit our Trade website or email info@chemical-warfare.com with information about your business and enquiry.

Email our customer service team at info@chemical-warfare.com. To help us respond quickly, include your order number whenever your question relates to an existing order.