50%OFF
50% Off Sitewide
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BF50
FNX Coupons & Promo Codes
Verified FNX Promo Codes & Coupons
When you buy through our links we may earn a commission.
40%OFF
40% Off Sitewide + Free Shipping
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CYBER40
25%OFF
25% Off Sitewide
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AMB-50
20%OFF
20% Off Sitewide
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FNX20
20%OFF
20% Off Sitewide
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WELCOME20
20%OFF
20% Off Sitewide
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TEAMFNX40
15%OFF
15% Off Sitewide
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KHILBY15
15%OFF
15% Off Your Order
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ASHLEYRN
15%OFF
15% Off Sitewide
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Buck15
15%OFF
15% Off Sitewide
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VOEKS15
15%OFF
15% Off Sitewide
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SAVE15
15%OFF
15% Off Sitewide
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TTRAN15
15%OFF
15% Off Sitewide
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NWING15
BOGO Free
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BCAA
40%OFF
40% Off Recharge+ Preworkout
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RECHARGE+
Buy 1, Get 1 Free On MTRX Red
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MTRX
2 For $70 BCAAs
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BCAA70
2 Recover BCAAs for $70
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BCA70
10%OFF
10% Off First Order
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FREE
Free Shipping w/ $125+ Order
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Save on All Orders w/ Subscribe & Save
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Receive Updates & Special Offers
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FREE
Free Shipping - No Minimum
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Unverified Promo Codes
These FNX discount codes are marked as expired in our system, but it's really common for coupons to work beyond their advertised expiation date. So we certainly can't guarantee that these codes work, but they very well might!
40%OFF
40% Off 1 Relax Sleep Aid
Click through and tap 'copy & go' to redeem 40% off 1 relax sleep aid at FNX. Discount code ending today.
SLEEP1
45%OFF
45% Off 2 Relax Sleep Aids
Click through and tap 'copy & go' to redeem 45% off 2 relax sleep aids at FNX. Promo code ending today.
SLEEP2
50%OFF
50% Off 3+ Relax Sleep Aids
Click through and tap 'copy & go' to score 50% off 3+ relax sleep aids at FNX. Coupon ending today.
SLEEP3
35%OFF
35% Off 1
Shop online and save throughout the site at FNX with this coupon code when you check out. Valid through tonight.
MULTI1
40%OFF
40% Off 2
Get 40% off 2 storewide when you enter this promo code during checkout. Ending tonight.
MULTI2
50%OFF
50% Off 3
Good through tonight. Save 50% off 3 throughout the site when you use this FNX code at checkout.
MULTI3
50%OFF
50% Off Sitewide
Ending today. Redeem 50% off throughout the site when you use this discount code at checkout.
BF50
BOGO Free Recharge+ PreWorkout
Valid now through tonight. Get bogo free recharge+ preworkout when you use this FNX coupon code at checkout.
RECHARGE+
BOGO Free Supplements
Shop online and save at FNX with this promo code when you check out. Expires tonight.
BOGOFREE
25%OFF
25% Off Sitewide
Click through and tap 'copy & go' to receive 25% off storewide at FNX. Promo code ends today.
FLASH25
20%OFF
20% Off Sitewide
Receive 20% off throughout the site when you enter this promo code during checkout. Valid through tonight.
RISE20
15%OFF
15% Off Sitewide
rc18
50%OFF
50% Off Sitewide
Shop online and save storewide at FNX with this promotion code when you check out. Valid through today.
FLASH50
35%OFF
35% Off Sitewide
Ending December 31st. Redeem 35% off throughout the site when you use this FNX coupon code at checkout.
SAVE35
50%OFF
50% Off Redemption Super Reds
Shop online and save at FNX with this coupon code when you check out. Expires today.
REDS
70%OFF
70% Off All Gear
Receive 70% off all gear when you enter this code during checkout. Expires tonight.
GEAR
50%OFF
50% Off Sitewide
Click through and tap 'copy & go' to receive 50% off storewide at FNX. Coupon code valid now through November 30th.
BF50
50%OFF
50% Off Sitewide
Shop online and save storewide at FNX with this coupon when you check out. Good through November 30th.
EARLY50
50%OFF
50% Off Sitewide
Good through tonight. Score 50% off throughout the site when you use this coupon at checkout.
AMB50
50%OFF
50% Off Sitewide
Click through and tap 'copy & go' to get 50% off throughout the site at FNX. Discount code expires tonight.
FLASH50
About FNX
Share the Savings
Do you have a FNX coupon that's not listed here? Share it with us and help your fellow shoppers save money!
Submit a CouponRate FNX:
5.0 with 22 ratings
About FNX:
FNX is a sports supplement brand that has a great line of products designed to help fuel your body and help with recovery. They carry everything you need to build yourself a better & healthier body. In addition to supplements they also carry a small selection of apparel & gear.
FNX is a sports supplement brand that has a great line of products designed to help fuel your body and help with recovery. They carry everything you need to build yourself a better & healthier body. In addition to supplements they also carry a small selection of apparel & gear.
FNX Frequently Asked Questions
How do I use an FNX coupon?
To use a coupon first add your items into your cart and continue to the check-out page. On the right side of the page will be a box that says "Discount". Enter your code here and click "Apply" to redeem your coupon.
How can I score 10% Off at FNX?
Take 10% off your next order when you sign-up for the FNX mailing list. Visit FNX.com for more details.
What is FNX's shipping / return policy?
Free shipping is offered for orders of $149 or more. If you aren't happy with your product for any reason you have up to 30 days after your purchase to make a return.
How can I contact FNX?
To contact FNX you can email info@fnxfit.com.
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