Frequently asked questions
Yes. Stone Circle is the only UK performance brand certified both Halal and Kosher — a combination no one else in combat nutrition offers. For a lot of athletes that’s the difference between buying and walking away. For everyone else, it’s a simple signal of how carefully we choose what goes in the tub.
Support the whole cycle, not one tub. For grappling, the areas that wear you down fastest are joints and connective tissue (Flex), post-session recovery (Muscle Repair), and sleep (ZMA and Relax). Strength and focus matter too — Muscle Compose and Focus cover those. Not sure where to start? Take the 60-second quiz and we’ll point you to the right product.
No. Every product stands on its own. Most people start with one product for the one thing they want to fix — sharper focus before training, or joints that take a beating — then build the cycle from there. The system is there when you’re ready for it, not before.
Simple version: Rise before you train, Reinforce through the day, Recover after the session, Rest at night. Each product page lists exact timing and doses. Focus goes 20–30 minutes before training; Muscle Compose any time you need protein; Muscle Repair in the hour after a hard session; ZMA and Relax before bed.
Muscle Compose is a whey protein blend, so it’s ideal for vegetarians but not vegans, and it does contain milk. If you’re sensitive to lactose, whey isolate is lower in lactose than concentrate, but everyone’s tolerance differs. Many of our capsule products — Focus, Nutri, Digest, ZMA, Relax and Flex — are suitable for vegans; Omega contains fish oil.
It’s a common myth. The creatine in Muscle Repair is 3g of creatine monohydrate — a researched, effective dose. Any early weight change is water drawn into the muscle, not fat, and it supports strength and recovery, not bloating. Take it with enough water and it does its job quietly.
We build with recognised, clearly labelled ingredients and no proprietary blends hiding what’s inside — so you always know exactly what you’re taking. If you compete under WADA or Informed Sport testing, check the full ingredients on each product page or get in touch before you buy.
If you haven’t found the answer to your question, please complete the form below and we’ll aim to get back to you within 24 hours.
Start your cycle
Not sure where to begin? Answer a few questions and we’ll point you to the right starting product.
