VerifiedVerified
Storewide

Code
VerifiedVerified
Storewide
20% Off Storewide at 38TERA w/Code
Last used: 5hr ago
Uses today: 4
Health: 91%
See 27 code verifications
ThriftyCaptain7175
On Jan 27, 2026, user ThriftyCaptain7175 added discount code shopnowknock for 38TERA.
ThriftyCaptain7175
On Jan 27, 2026, user ThriftyCaptain7175 reported discount code shopnowknock as working successfully.
LOgoter
On Jan 27, 2026, user LOgoter reported discount code shopnowknock as working successfully.
Detail
Everything you need to know about this code
Last successfully used: Feb 6, 2026

Code
VerifiedVerified
Storewide
10% Off Storewide at 38TERA w/Code
Last used: 13hr ago
Uses today: 3
Health: 99%
See 12 code verifications
kakarotto
On Aug 20, 2025, user kakarotto reported discount code JULIANALVAREZ as working successfully.
GoldSeeker7901
On Jul 22, 2025, user GoldSeeker7901 reported discount code JULIANALVAREZ as working successfully.
rafaelmarquez
On Jul 21, 2025, user rafaelmarquez reported discount code JULIANALVAREZ as working successfully.
Detail
Everything you need to know about this code
Last successfully used: Feb 10, 2026

Code
VerifiedVerified
Storewide
10% Off Storewide at 38TERA w/Code
Last used: 1+ mo ago
Uses today: 1
Health: 95%
See 12 code verifications
TheJoyBoy
On Sep 15, 2025, user TheJoyBoy reported discount code ADDAQUERALES as working successfully.
LHaunter
On Jul 19, 2025, user LHaunter reported discount code ADDAQUERALES as working successfully.
Carolina23
On Jun 20, 2025, user Carolina23 added discount code ADDAQUERALES for 38TERA.
Detail
Everything you need to know about this code
Last successfully used: Feb 7, 2026

Code
VerifiedVerified
Storewide
10% Off Storewide at 38TERA w/Code
Last used: 8d ago
Uses today: 1
Health: 95%
See 30 code verifications
kkkkkkkkkkkkkkkkkkkk
On Jul 17, 2025, user kkkkkkkkkkkkkkkkkkkk reported discount code WELCOME10 as working successfully.
Levi_Ackerman
On Jun 18, 2025, user Levi_Ackerman reported discount code WELCOME10 as working successfully.
SapeGato
On May 19, 2025, user SapeGato reported discount code WELCOME10 as working successfully.
Detail
Everything you need to know about this code
Last successfully used: Feb 2, 2026

Code
VerifiedVerified
Storewide
10% Off Storewide at 38TERA w/Code
Last used: 8d ago
Uses today: 1
Health: 83%
See 9 code verifications
RewardMonarch5847
On Aug 9, 2025, user RewardMonarch5847 added discount code TERA for 38TERA.
Detail
Everything you need to know about this code
Last successfully used: Jan 29, 2026

38TERA offers free standard shipping on most orders, which is automatically applied during checkout.

38TERA offers exclusive discounts when you sign up for their newsletter. You'll receive email-only deals, early sale access, and special promotions directly to your inbox. This offer was last confirmed by our team on Jan 26, 2026.

38TERA products can be found on sale for under $79.95 on Amazon, with free shipping from Amazon Prime.
12
Code verifications & uses this week
Active 38TERA code users










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38tera.com
112
38TERA deals available today
29
29 Verified 38TERA codes
20
Active store-wide codes
20% off
Biggest discount available

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To redeem your 38TERA loyalty points for a coupon code, follow these steps:
Points are typically earned based on purchases (around 1 point per $1 spent). Redemption options vary based on your point balance, with different tiers offering various discount amounts.
Coupon codes generally expire after 30-90 days, so check your Rewards dashboard for specific expiration dates. Minimum point requirements vary between 50-500 points depending on the discount tier.
Pro tip: Maximize your points by making purchases during sales events, especially for one-time gut health supplement purchases.
38TERA doesn't currently offer a standard $10 off referral program. However, friends can share sitewide promotional codes like WELCOME10 for 10% off first orders, which provide similar savings.
To use a promotional code, simply enter it in the "Promo Code" field at checkout before completing your payment. First-order discounts typically range from 10-20% and often exclude subscription purchases.
If you encounter an "Invalid code" message, the code may have expired or may not be applicable to your specific items.
Pro tip: Ask friends for recently used promotional codes instead of looking for a specific referral program. Test codes before finalizing your cart to ensure they're still active.
To get a 10% off promo code by signing up for 38TERA's newsletter:
The newsletter signup code is usually delivered instantly, but may take up to 24 hours to arrive. Be sure to check your spam folder if you don't see it right away. These welcome codes are typically valid for 30 days and cannot be combined with other offers.
Pro tip: Use a dedicated email address for promotional offers to easily track and manage time-sensitive codes and avoid missing flash sales.
Your 38TERA promo code may not be applying for several common reasons:
To troubleshoot:
Pro tip: Copy and paste verified codes directly from coupon sites rather than typing them manually to avoid case-sensitivity errors.
38TERA coupon codes typically come with these restrictions:
These restrictions are clearly displayed during checkout when you apply a code.
Pro tip: Look for "Site-Wide" tagged codes if you want a discount that applies to your entire cart rather than specific product categories.
Most 38TERA promo codes do not work on subscription purchases. They typically apply only to one-time purchases of products like their DMN prebiotic supplements.
If you try to apply a code to a subscription, you'll likely see an error message indicating the code is invalid for recurring orders. Instead of discounts, subscription customers benefit from the loyalty points program.
To use a promo code, you'll need to switch your cart items from subscription to one-time purchase before applying the code.
Pro tip: If you want to use a code but also want the subscription benefits, consider making a one-time purchase with the code applied, then setting up a subscription for future orders.
No, 38TERA does not allow stacking multiple discount codes on a single order. You can only apply one promotional code per purchase.
If you attempt to add a second code, you'll receive an error message indicating that only one discount is allowed per order. This is standard practice for supplement retailers to prevent excessive discounting.
When checking out, apply the code that offers the highest value for your specific order. In some cases, the system may automatically apply the highest value code if you try multiple options.
Pro tip: Compare available codes before checkout and choose the one with the highest percentage discount (like 60% off) rather than trying to combine multiple smaller discounts.
At 38TERA's Rewards program, you typically need between 100-500 loyalty points to redeem for a basic discount code (worth approximately $5-10 off).
The program generally awards 1 point per $1 spent on purchases. Different reward tiers require different point levels, with users reporting around 200 points needed for 10% off codes.
To check your points and available redemptions:
Points typically accrue instantly after purchase but may take up to 24 hours before they can be redeemed. Points usually expire yearly if unused.
Pro tip: Purchase product bundles during sales events to accumulate points faster and reach redemption thresholds more quickly.
Yes, 38TERA promo codes do expire. Most promotional codes are valid for 7-30 days from issue, while some high-value codes (like 50% off deals) may expire even faster or after a limited number of uses.
If you try to use an expired code, you'll receive an "Expired code" error message at checkout. Promotional codes obtained through the loyalty program typically have a 90-day expiration period.
New codes are regularly released through the newsletter and on the website, so there are always fresh options available.
Pro tip: Check coupon tracking sites for recently verified codes and sort by "Last used" to find the most current active promotions.
Yes, many 38TERA discount codes have minimum purchase requirements, typically between $40-50, especially for dollar-amount discounts (like $4 off specific products).
If your cart total doesn't meet the minimum requirement, you'll see a "Minimum order not met" error when attempting to apply the code. Percentage-based discounts (like 10% off) often have lower or no minimum requirements but may exclude subscription products.
The specific minimum purchase requirement is usually displayed in the code terms at checkout after you attempt to apply it.
Pro tip: Bundle 2-3 items in your cart to reach minimum thresholds more easily. This strategy can also help you qualify for free shipping, which is often available on orders over $70.
In the past month, 38TERA has launched 5 new promo coupons for shopper discounts. This indicates that 38TERA provides regular opportunities for customers to save money on their purchases.
On average, 38TERA provides 5.1 discount coupons each month. Based on historical data, the average time between 38TERA coupon releases is approximately 6 days. However, this is subject to change and may depend on various factors such as seasonal promotions, product launches, or other marketing initiatives. To stay informed about upcoming discounts and promotions, we recommend checking 38TERA website regularly, subscribing to their email newsletter, and following them on social media.
38TERA is offering 20 working store-wide codes, and they are also offering 29 additional discount codes with a max discount of 20% off.
SimplyCodes is the #1 provider of discount codes for your favorite retailers, such as 38TERA. As the only crowdsourced platform for coupon codes, we have all the latest and accurate codes for over 200,000 stores. Save time and avoid expired codes by checking SimplyCodes for the latest 38TERA discount codes.
On average, 38TERA offers 5.1 coupon codes per month. As of today, 38TERA has 29 active coupons and offers.
As of Feb 12, 2026, it does not appear that 38TERA has discounts for Black Friday or Cyber Monday. We regularly check for 38TERA's Black Friday and Cyber Monday discounts, so be sure to check back on this page to find the latest cyber week deals.