Become a part of the LOOP community and stay one step ahead. In addition to 10% off every order, LOOP Subscribers receive:
Reward codes are for qualifying clients only and subject to availability. All research-use-only labeling and guidelines still apply. Additional promo codes cannot be combined with subscription discounts.
For laboratory research use only. Not intended for human consumption or medical use.
All products are for laboratory research use only. They are not intended for human consumption or medical use of any kind. Loop Labs does not condone or support the use of peptides outside of controlled scientific research. By purchasing, you confirm that you are a qualified researcher or institution and that you are at least 18 years old.


Pigment Pro
MT-II (Melanotan II) is a synthetic research peptide being studied for its potential role in stimulating melanin production, which may influence skin pigmentation. R...
MT-II (Melanotan II) is a synthetic research peptide being studied for its potential role in stimulating melanin production, which may influence skin pigmentation. Research has also explored its possible effects on appetite regulation and sexual function.
Studies have examined MT-II for its ability to promote skin pigmentation with reduced UV exposure, its potential impact on weight management through appetite modulation, and its possible role in supporting sexual health. For research use only. Not approved for human consumption. Sold in lyophilized (powder) form.
All MT-II is synthesized to ≥99% purity, manufactured in the USA in GMP-compliant facilities, and third-party tested to ensure quality, consistency, and transparency.
Please note: Shipping may be delayed due to high order volume.