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28% Off Mars by GHC Coupons, Promo Codes August 2026
✓agent-verified & updated·August 18, 2026
Today's Current Mars by GHC Coupons and Promo Codes:
16 offers in totalSave Up to 20% Off at Mars By GHC US
Take up to 20% off eligible Mars By GHC US purchases with this discount code.
agent score 19/100passed 3 of 3 agent checks
Enjoy 10% Off Storewide
Take 10% off storewide at Mars By GHC US with this code.
agent score 10/100passed 2 of 2 agent checks
Get Up to 28% Off Store-wide
Use this Mars By GHC US coupon code to get up to 28% off store-wide.
agent score 10/100passed 3 of 3 agent checks
Up to 10% Off Your Order
Apply this discount code to save up to 10% on eligible Mars By GHC US purchases.
agent score 10/100passed 3 of 3 agent checks
Get £50 Off at Mars By GHC US
Save £50 on eligible Mars By GHC US purchases when you use this discount code.
agent score 1/100passed 3 of 3 agent checks
Performance Deals: Select Supplements From $29.99
Mars by GHC lists multiple performance products at sale prices below their regular prices. Examples include select Shilajit, Sea Moss, Surge Max, and combo products marked down from regular prices such as $34.99, $39.99, or $69.99.
Beard Care Sale: Up to $11 Off Select Products
Select beard care products on Mars by GHC are marked with sale pricing. Examples include the beard derma roller reduced from $21.99 to $16.99 and the wooden beard comb reduced from $25.99 to $14.99.
Christmas Sale: Select Supplements From $24
Mars by GHC has an official Christmas Sale collection with select products marked down. The collection includes products such as Nitric Oxide Capsules reduced from $39.99 to $29.99 and Shilajit Caps listed from $24.00 versus $29.99.
Free Gift: ShapeShift Bundle for $0
Mars by GHC lists the ShapeShift Bundle in its Nector Discount Eligibility collection at $0.00, reduced from a regular price of $79.98. The offer appears tied to eligibility for the Nector discount collection rather than a customer-entered code.
Bundle Deals: Select Combos From $49.99
Mars by GHC offers discounted bundle pricing on select supplement combos. Examples on the bundle page include combo products reduced from regular prices such as $69.98 or $69.99 to sale prices starting at $49.99.
Buy 5 for $99 on Select Wellness Products
Mars by GHC has a dedicated Buy 5 @ 99 Products collection featuring eligible supplements and wellness items. The page lists qualifying products with sale pricing, including items marked down from their regular prices.
Up to $10 Off Select Skin Care Products
Mars by GHC lists select skin care products with reduced sale pricing, including anti-aging serum and alpha arbutin serum shown from $29.99 compared with $39.99. The markdown applies to eligible skin care items marked Sale on marsghc.com.
Up to $11 Off Select Beard Accessories
Eligible Mars by GHC beard accessories are displayed with sale pricing, including the wooden beard comb at $14.99 compared with $25.99. The discount is applied to qualifying sale-marked beard products on the site.
Up to $20 Off Select Wellness Supplements
Mars by GHC wellness products include sale-marked items with reduced pricing, such as Sleepezzz listed from $29.99 compared with $49.99. The discount applies to eligible wellness products shown with sale pricing on the official site.
Up to $10 Off Select Weight Management Supplements
Select Mars by GHC weight management supplements are listed with sale pricing from $29.99 compared with crossed-out prices of $39.99. Eligible sale items include products in the weight management section displayed on marsghc.com.
Up to $30 Off Weight Management Bundles
Mars by GHC lists select weight management bundles at discounted prices, including bundles shown at $49.99 compared with crossed-out prices up to $79.98. The markdown is available on eligible sale products displayed on the site.
Mars by GHC Shopping Info
Discounts
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Mars by GHC Coupon Verification Data: Live Cart Tests and Real Savings
Our agents add each Mars by GHC code to a real marsghc.com cart and try to check out, and we count what real orders and shoppers report back. Green is how many checks came back working that day. Red is how many the site would not accept, so you don't have to sit at checkout testing them yourself.
| Day | Codes that worked | Codes that would not apply | Success rate |
|---|---|---|---|
| Aug 8, 2026 | 1 | 0 | 100% |
| Aug 9, 2026 | 1 | 0 | 100% |
| Aug 10, 2026 | 0 | 0 | — |
| Aug 11, 2026 | 0 | 0 | — |
| Aug 12, 2026 | 5 | 0 | 100% |
| Aug 13, 2026 | 0 | 0 | — |
| Aug 14, 2026 | 3 | 0 | 100% |
| Aug 15, 2026 | 0 | 0 | — |
| Aug 16, 2026 | 0 | 0 | — |
| Aug 17, 2026 | 1 | 0 | 100% |
Last confirmed working on August 17, 2026. Codes that stop clearing get pulled off this page automatically.
Data deep dive: how we test Mars by GHC codes
Instead of leaving you to paste codes one by one, our agents do it first. They run around the clock on a real marsghc.com cart, so the codes we put at the top of this page are the ones that were still working the last time anyone checked, and the dead ones are already out of your way.
A code check is one result for one code. Most are our agents applying it to a real cart and reading the order total before and after; the rest come from tracked orders and from shoppers reporting back, as broken down above. Worked means the code was accepted and the total went down. Would not apply means marsghc.com refused it on that cart. That is not the same as the code being fake. The usual reasons are:
- It expired or the store switched it off after it was published.
- It was single-use and had already been redeemed.
- It only covers certain categories, brands or individual products.
- The cart did not reach a minimum spend.
- It is limited to new customers, a first order, or an email sign-up.
- It cannot be combined with an active sale or another code.
- It is tied to a different country, currency or membership.
So a code that failed one check can still work on your cart, and the success rate (checks that worked divided by all checks) is best read as how easily Mars by GHC discounts apply in general, not as a verdict on any single code. Hover any bar in the chart to see that day on its own.
How the Agents Verify Mars by GHC Codes
When Do New Mars by GHC Deals Drop?
Our agents log every new Mars by GHC promo code and deal the day it goes live, and record what the working ones took off a real cart. Here's how many landed each month over the past year, how deep the discounts ran, and when it pays to wait.
New Mars by GHC offers per month
busiestavg 7/mo
What a working code took off the cartmedian per month · dashed where too few carts
ran $4.13–$15.33 a carttypical $7.87 (9% off)biggest in July 2026
| Month | New offers | Median off a cart | Share of the cart |
|---|---|---|---|
| October 2025 | 13 | not tracked | not tracked |
| November 2025 | 8 | $4.13 | 6% |
| December 2025 | 5 | $12.08 | 19% |
| January 2026 | 1 | $4.44 | 7% |
| February 2026 | 1 | not tracked | not tracked |
| March 2026 | 3 | $4.55 | 9% |
| April 2026 | 8 | not tracked | not tracked |
| May 2026 | 15 | $11.19 | 10% |
| June 2026 | 8 | not tracked | not tracked |
| July 2026 | 5 | $15.33 | 15% |
- Busiest month
- May
- 15 offers
- Monthly average
- 7
- new offers
- Quietest month
- Jan
- 1 offers
- Typical discount
- 9% off
- $7.87 a cart
Mars by GHC Customer Support
Need help with your shopping? Here's what's available for Mars by GHC when an order, return, or promo code needs a human.
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