Sheer Strength via Amazon offers Prime members its Sheer Strength Labs Creatine Monohydrate 510g 100-Serving Canister for $10 with free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $5.82.) That's the lowest price we could find by $7. It's made in the USA and purports to enhance muscle growth and strength.