Earn 15% on every referred order
Partner with PepSource and earn industry-leading commission promoting independently verified research peptides. Your audience gets 10% off their first order — you get paid on every sale you send, month after month.
Three steps to your first payout
Apply in two minutes
Tell us where and how you promote. We approve most partners within 2–3 working days.
Share your link or code
You get a personal referral link (30-day cookie) and a discount code worth 10% off your audience's first order.
Get paid monthly
Track clicks, orders and commission in your live dashboard. Payouts via PayPal once you reach £25.
Built for partners who want more than a coupon code
High commission
15% of order subtotal, excluding shipping and taxes — no caps.
Recurring earnings
Earn on repeat orders from your referrals, not just the first.
Fair attribution
30-day cookie plus your personal code — whichever the customer uses.
Real-time dashboard
Live clicks, conversions, commission and payout history.
Products that convert
99%+ HPLC-verified purity with published certificates of analysis — a catalogue researchers trust.
Fast support
A real human answers partner emails within one working day.
What that looks like in practice
Refer just 10 orders a month and that's £81/month — with no cap and commission on every future order those customers place within your attribution window.
Promote responsibly
All PepSource products are for laboratory research use only. Affiliates must never make medical, therapeutic, dosing or human-consumption claims, and must present products accurately as research compounds. We also don't allow bidding on PepSource brand terms in paid search, posting codes to coupon sites, or self-referrals. Full details are in the affiliate terms.
Questions affiliates ask us
How much do I earn?
15% of the order subtotal (after discounts, excluding shipping and taxes) on every order attributed to you — first orders and repeat orders alike.
How are sales attributed to me?
Two ways: your personal referral link sets a 30-day cookie, and your discount code attributes the sale even without the cookie. If both apply, you're credited either way — the code takes priority.
When and how do I get paid?
Monthly by PayPal. Commission clears 30 days after the order (to cover the returns window) and is paid once your cleared balance reaches £25.
Who can apply?
Content creators, community admins, researchers and publishers with an audience relevant to laboratory research. Every application is reviewed by a human within 2–3 working days.
What happens if an order is refunded?
Commission is only paid on completed, settled orders. If an order is refunded, cancelled, charged back, or the parcel is returned to us, the commission for that order is reversed.
Can my code be combined with other discounts?
No — one discount code per order, so your code can't be stacked with other promotions.
What can't I do as an affiliate?
No medical or consumption claims, no bidding on PepSource brand keywords, no coupon/voucher sites, no spam, and no ordering through your own link or code. Breaches forfeit unpaid commission and end the partnership.
How do I track my performance?
Your partner dashboard shows clicks, orders, conversion rate, commission and payout history in real time.
Become a PepSource affiliate
Tell us a bit about where and how you'll promote us — we reply within 2–3 working days.