Current Promotions

Active promo codes for RCM Biosciences research peptides and laboratory supplies. Copy a code below and apply it at checkout. Research use only.

Save 20% on Qualifying Orders

Use promo code SAVE20 to save 20% on qualifying merchandise orders of $250 or more.

SAVE20

Ends September 10, 2026

Shop Qualifying Products

Terms & conditions

Exclusions: Excludes all 10-pack products.

Save 20% on qualifying merchandise orders of $250 or more. Excludes all 10-pack products. Discount applies to eligible merchandise only — shipping and taxes are not discounted. One promo code per order. Cannot be combined with other promotions. Ends Sept 10 2026 at 11:59 PM Central.

All products sold by RCM Biosciences are for laboratory research use only. Not for human or animal use. Not for injection. Promo codes cannot be combined unless explicitly noted and are subject to change or removal at any time.

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