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Cash Back Guidelines

Cash back is not offered on the purchase of Gift Cards or redeeming Gift Cards. Use of coupon/promotional codes not listed on Active Junky will void Cash Back.


About Gainful Deals, Promo Codes & Cash Back

Gainful provides personalized protein powder tailored to your body type and fitness goals. Visit our website at to complete the short quiz and discover your perfect protein blend! Our product is a subscription based service - offering options for a 14-day or 28-day serving.

Shop with Active Junky to get the highest cash back rates and access to exclusive coupons and promotions.

Gainful – Deals, Promo Codes & Cash Back

Bulking up or toning down? We've got you covered. Try our personalized protein blends. Use code for 10% off!
5% Cash Back
Promo Code: TAKE10OFF
Save $10 off your Order!
5% Cash Back
Free Shipping On All Orders!
5% Cash Back
#1 Muscle Gain Protein Powder!
5% Cash Back
Best Vegan Protein Powder!
5% Cash Back
Custom Pre-Workout. Get $10 Off!
5% Cash Back
Personalized (And Delicious) 100% Whey Protein. Made Just For You. Try our new flavors!
5% Cash Back
Personalized Protein for your fitness goals. Each protein formula contains 7 ingredients or less. No gluten, soy, fillers or any artificial flavors, colors or sweeteners.
5% Cash Back

Invite a Friend – You Both Get $5

Invite a friend to join Active Junky and both you and your friend earn an easy $5.