This combination does not exist.
Terms and Conditions 30-day money-back guarantee Shipping: 2-3 Business Days
![[D-Ser2] Leu-Enkephalin-Thr [Tyr-D-Ser-Gly-Phe-Leu-Thr; MW: 686.77] - 5 mg](/web/image/product.product/123775/image_1024/%5BSP-88452-5%5D%20%5BD-Ser2%5D%20Leu-Enkephalin-Thr%20%5BTyr-D-Ser-Gly-Phe-Leu-Thr;%20MW:%20686.77%5D%20-%205%20mg?unique=a83a284)