About Us

BOSS Supplements Newmarket is your best choice when it comes to nutrition stores in Newmarket, Bradford and Aurora. We have your sports nutrition needs covered. We carry a full assortment of protein powder including whey protein powder, vegan protein, beef protein powder, keto protein, liquid protein, protein bars, keto bars and snacks, pre-workout and post-workout powders, BCAA's, creatine powders and caplets, vitamins, omega 3's and essential fish oil, diet and weight management products, meal replacement options, carnitine, CLA, fat burners, collagen, testosterone boosters, vitamins and minerals, resistance bands, weight lifting belts, wraps and straps - and of course we carry fitness gear including BOSS clothing.

We only offer the safest and best known brands: - Allmax - Perfect Sports - Yummy Sports - Optimum Nutrition -  Believe Supplements - TC Nutrition - RedCon1 - GAT - NOW - PVL - Mutant - Flourish Pancakes - Animal - Blue Star Nutraceuticals - Controlled Labs Orange Triad - Liquid Muscle - Supplements Newmarket - Mammoth Supplements - Mammoth Mugs - Fusion Purple K - OBVI - Bragg - Himalya - EFX Sports Kre Alkalyn - Ammunition Nutraceuticals - BSN - White Lion Athletics Resistance Bands, Rise Lifting - Grenade Carb Killa Protein Bars - BSN Protein Crisp Bars - One Bars, Sinfit Syrups, Flavor God Seasonings plus much more!

Make BOSS Supplements your first stop when you are looking for supplements in Newmarket! Live in Aurora? We are worth the drive if you are looking for supplements in Aurora. You won’t be disappointed. 

See why we are the #1 sports nutrition store in Newmarket and all of York Region! Located at 17725 Yonge St Newmarket, ON L3Y 7C1 (across from the Upper Canada Mall). You can call (905) 235-5344 or email newmarket@bosssupplements.com.