How to combine a coupon code with free shipping

“Can I use two codes?” is the question we get most. The short answer: not two codes, but a code plus free shipping works fine, because free shipping isn’t a code. It’s a line in the cart. Cross it and the shipping fee disappears, whatever is in the code box.

So the real question is how the two meet. This guide walks through it for Nexo Research, Europa-Peptide and Peptid24, using what the shops state on their own pages (read on 3 November 2026).

Free shipping is a line, not a code

Nexo Research states free shipping from €100 for Germany. Europa-Peptide says free for EU orders from €99, and Peptid24 from €75. None of them asks for a code. The line applies by itself.

That makes a code and a shipping line two separate tests. A cart can clear one and miss the other. The lines shop by shop, including where a shop’s own pages disagree, are in our guide to free-shipping lines.

One code per order

Shops that publish codes are blunt about it. Nexo Research’s conditions say one code per order, and a code does not combine with a points reward. Its rewards page offers 400 points for 15% off an order from €80, so it is a code or points, never both. Other shops that print codes on their sites write that a code cannot be combined with another one.

So plan for a single code per order, and check the shop’s own wording if you hold two. A first-order code is for a first order only.

What Nexo’s conditions mean for your cart

Nexo Research issued eight codes for PeptDeals: five percentage codes (10% to 30%) and three fixed amounts (€10, €25, €50). Minimums run from €50 to €400. Every code is valid until 3 May 2027 and works once per customer, and the two biggest percentage codes are for a first order only. We don’t print the codes in articles: you unlock them on the coupons page with one verified e-mail.

Three of Nexo’s conditions decide how a code meets the shipping line:

• Minimum order counts products only. It uses the product prices after pack, lab box and set prices, bacteriostatic water included. Shipping doesn’t count.
• Bacteriostatic water is never discounted.
• Discounts never take a product below 60% of its list price. The cart then shows “Best price” on that product.

Codes at Europa-Peptide and Peptid24

Europa-Peptide prints one public code, WELCOME10, in the newsletter block on its home page: 10% off a first order. The pop-up says the code arrives by e-mail after signing up, and we haven’t tested it at checkout. Some of its products also carry automatic sale prices. Those are not codes, and the cart shows them without you doing anything.

Peptid24 shows no code as text. Its newsletter offers 15% off a first order, with the code sent by e-mail. In both cases the shop doesn’t say whether the code combines with anything else, so read the e-mail you get.

Three sums

The carts below are made up. The percentages, minimums and lines are the shops’ own.

Nexo Research, €105 of products, 15% code with a €100 minimum. The minimum is met. The discount is €15.75, which leaves €89.25, under the €100 line if the shop measures the line after the code. Nexo’s pages don’t say which way it goes, so apply the code and read the shipping row. If shipping is charged, about €118 of products brings the total back to €100 after the discount.

Europa-Peptide, €110 of products, WELCOME10. €11 off leaves exactly €99.00. The top bar says orders over €99 ship free, while other pages say from €99. Those two wordings disagree at exactly €99.00. A small extra item, and the question is gone.

Peptid24, €85 of products, 15% newsletter code. €12.75 off leaves €72.25, under the €75 line if it is measured after the code. You would need €88.24 of products to land on €75. The top bar mentions Germany while the shipping policy says EU, so check your country first.

The order of operations

1. Build the cart you actually need.
2. Pick the one code that fits that cart, minimum included.
3. Apply it and read the new total.
4. Look at the shipping row, not at what you expect it to say.
5. Top up only with something you’d buy anyway. Spending €10 more to drop a shipping fee can be fine. Spending €40 more rarely is.

Where to check

Wording changes, and the shop’s own pages win. Start with Nexo Research’s shipping page and Peptid24’s shipping policy. Each code on our coupons page lists its conditions and where it was found, and where a shop states no end date we say so. For the facts on each shop, see Nexo Research, Europa-Peptide and Peptid24, and for how scores work, how we rate.

One neutral note: some of the outbound links on this site are affiliate links, and neither scores nor reported facts depend on them. By default three shops are pinned first; after them, shops follow the overall score.

Products at these shops are sold for laboratory research use only. Nothing here is medical advice.