Frequently asked questions
Clear answers about products, payments and delivery.
Product Information
What is SD Matrix?
SD Matrix is our flagship bodybuilding supplement and the product that started our range.
What is Matrix Black?
Matrix Black was added to the range after SD Matrix. See its dedicated page for details about the product and formula.
What are prohormones?
Prohormones are compounds that the body converts into hormones. Our dedicated page explains this category in more detail.
What is SARMS?
SARMS stands for Selective Androgen Receptor Modulators. Visit our dedicated page for more information about this category.
What is Post Cycle Therapy (PCT)?
PCT stands for Post Cycle Therapy. It refers to the period after a cycle, when hormone levels may need time to readjust.
Is it safe to use your products?
- Read and follow the product directions.
- Misuse can harm your health.
- Speak to your physician before using a product to check whether it is appropriate for you.
Where are SD Matrix’s products produced?
We produce our products in the UK and oversee production ourselves, including the selection of ingredients.
Where can I find more information?
Check the individual product pages for descriptions, or browse our blog for more articles.
Ordering & Shipping
What payment options do you offer?
Pay by card at checkout. Accepted cards include:
- Visa
- Visa Electron
- MasterCard
- Maestro
- American Express
Prefer a bank transfer? Contact us via WhatsApp for details.
I got an error during the payment process, what caused this?
A common cause is a mismatch between your billing details and the details registered with your card.
- Check that your billing address matches your card provider’s records.
- If you need to add a flat or unit number, use the separate shipping address fields.
Still having trouble? Email [email protected] and we’ll help.
Where do you ship?
We ship internationally, with the following exceptions:
- Norway
- Sweden
- Finland
- Canada
How are my shipping costs calculated?
Shipping costs depend on two things:
- Your delivery destination.
- The combined weight of the products in your order.
How long does it take to receive my order?
- UK: 2–3 working days.
- Outside the UK: 5–10 working days, depending on your location.
These are estimated delivery times.
Once your order is dispatched, we’ll email your tracking number so you can follow its progress on the Royal Mail website.
Do you offer express shipping?
We don’t offer express shipping. Standard delivery gives carriers more flexibility to plan efficient routes and supports our aim to reduce environmental impact.