MT-II
Buy research-grade MT-II (Melanotan II) in Costa Rica for $90 per 10mg vial — a synthetic melanocortin receptor agonist studied for melanogenesis, skin tanning, photo-protection, vitiligo research, sexual function, and appetite regulation. Transparent pricing, no customs fees, 2–4 day local delivery, and an automatic 15% discount when you order five or more vials.
MT-II Price in Costa Rica
MT-II (Melanotan II) is available in a single 10mg vial at Peptides Costa Rica:
- MT-II 10mg — $90 ($9.00 per mg)
With the 15% bulk discount on 5+ vials of the same product, the per-vial cost drops to $76.50 — a saving of $67.50 on a five-vial order ($450 down to $382.50). MT-II is frequently compared to PT-141 (Bremelanotide) for sexual function research — PT-141 is the selective MC4R agonist derived from MT-II research and is also available at Peptides Costa Rica. Combining both in one order alongside BAC Water crosses the $200 free-shipping threshold
Buy MT-II (Melanotan II) in Costa Rica: Research Grade & Lab Tested
MT-II (Melanotan II) is a cyclic heptapeptide analog of alpha-melanocyte-stimulating hormone (α-MSH), supplied as a lyophilized powder in a 10mg vial requiring reconstitution before research use. It is a non-selective melanocortin receptor agonist — binding to MC1R, MC3R, MC4R, and MC5R — which accounts for its broad research profile spanning skin pigmentation (MC1R), appetite regulation (MC3R/MC4R), sexual function (MC4R), and sebaceous gland activity (MC5R). Every batch is independently lab tested and ships with a Certificate of Analysis available on request.
MT-II is priced at $90 per 10mg vial at Peptides Costa Rica, in USD, with no hidden fees and no customs handling since every order ships from inside Costa Rica. Orders over $200 ship free anywhere in the country — pairing two MT-II vials or combining with BAC Water or another product easily crosses that threshold. Ordering five or more vials triggers an automatic 15% bulk discount, bringing the per-vial cost down to $76.50 — a saving of $67.50 on a five-vial order. Delivery takes 2–4 business days from order placement.
What are the Potential Effects of NAD+ Peptides?
Melanogenesis & Skin Tanning
MT-II binds to MC1R on melanocytes, stimulating melanin synthesis and increasing skin pigmentation — a process known as melanogenesis. This effect occurs independently of UV radiation exposure, making MT-II relevant in research examining UV-independent tanning mechanisms, photo-protection, and the role of melanin in shielding skin from UV-induced DNA damage. Research has also explored its potential application in conditions of abnormal melanin distribution such as vitiligo.
Photo-Protection Research
Increased melanin production stimulated by MT-II is studied for its potential role in photo-protection — the capacity of melanin pigmentation to absorb and scatter UV radiation before it reaches deeper skin layers. Research in this area investigates MT-II as a potential tool for studying UV damage reduction in fair-skinned or melanin-deficient research models.
Sexual Function via MC4R
MT-II's binding to MC4R in the central nervous system is associated in research with pro-erectile and pro-sexual effects in both male and female models. This application — originally an incidental finding in early tanning research — has been extensively studied and led directly to the development of PT-141 (Bremelanotide) as a selective MC4R-targeting compound. MT-II research in this area continues to examine the broader melanocortin pathway's role in sexual motivation and arousal.
Appetite Regulation & Metabolic Effects
MC3R and MC4R activation by MT-II is associated in research with appetite suppression and reduced food intake — effects mediated through hypothalamic melanocortin signaling pathways. This positions MT-II in research examining the central regulation of energy balance, making it relevant alongside metabolic peptides in studies on obesity and appetite control.
Why Choose Peptides Costa Rica's MT-II?
We specialize in supplying high-purity research peptides with a focus on transparency, fast domestic delivery, and dedicated customer support.
MT-II Research Overview
MT-II is a synthetic analog of the naturally occurring peptide alpha-MSH (alpha-melanocyte-stimulating hormone). It works by binding to melanocortin receptors, stimulating the production of melanin and darkening the skin. Research into MT-II focuses on its potential to treat skin disorders, including vitiligo, and to explore its role in UV exposure protection. Additionally, MT-II is studied for its potential to enhance sexual function and regulate appetite, making it a multi-purpose compound for investigating various biological processes.
In clinical trials, MT-II has shown significant potential in tanning and photo-protection, while ongoing studies continue to explore its broader applications in metabolic and sexual health.
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Why Researchers Choose MT-II
MT-II is ideal for research on skin health, tanning, appetite regulation, and sexual function due to its diverse effects
01
Melanin Production
Stimulates melanin synthesis through MC1R binding on melanocytes, promoting tanning and skin darkening independently of UV exposure. Used in research examining melanogenesis mechanisms and photo-protection potential.
02
Skin Health Studies
Used to investigate treatments for conditions of abnormal melanin distribution such as vitiligo, where targeted melanogenesis stimulation is studied as a potential therapeutic approach. Also explored in aging skin research for its role in melanocyte activity modulation.
03
Appetite Regulation
Studied for its appetite-suppressing effects through MC3R and MC4R activation in hypothalamic signaling pathways linked to energy balance and food intake. Relevant in metabolic research examining central nervous system control of appetite.
04
Sexual Function
Trusted Source for Research Peptides
We supply high-purity MT-II and other research peptides with consistent quality, transparent pricing, and reliable local delivery. Every order ships from inside Costa Rica — no customs delays, no import duties.
Bulk Savings
Save more with bulk purchases. Buy five or more vials of the same product and get 15% off with clear, upfront pricing and no hidden conditions.
Simple Ordering Process
Place orders through a simple process—review products, confirm availability, choose your payment method, and arrange delivery within Costa Rica.
Flexible Payment Options
Choose from secure payment options including SINPE Móvil, Zelle, or cash for smooth and convenient transactions.
Transparency & Documentation
We provide Certificates of Analysis along with clear communication, verified stock, and straightforward pricing for complete trust.
Common Questions
Frequently Asked Questions
MT-II (Melanotan II) is priced at $90 per 10mg vial at Peptides Costa Rica, in USD. With a 15% bulk discount on orders of five or more vials, the per-vial cost drops to $76.50 — a saving of $67.50 on a five-vial order ($450 down to $382.50). Pairing two vials or combining MT-II with BAC Water or another product in a single order crosses the $200 free-shipping threshold.
Yes. Order five or more MT-II 10mg vials in a single order and receive an automatic 15% discount. Five vials normally cost $450 and drop to $382.50 — no tiered minimums, no fine print, applied automatically at checkout.
MT-II (Melanotan II) and PT-141 (Bremelanotide) are closely related — PT-141 was developed directly from MT-II research. The key difference is receptor selectivity and research scope. MT-II is a non-selective melanocortin agonist that binds to MC1R, MC3R, MC4R, and MC5R simultaneously, producing effects across tanning, appetite regulation, and sexual function. PT-141 is a metabolite of MT-II that is more selective for MC4R — its research profile is focused primarily on sexual function and arousal, with significantly less melanogenesis activity than MT-II. Researchers studying tanning, photo-protection, or broad melanocortin pathway effects use MT-II; those focused specifically on MC4R-mediated sexual function research tend to use PT-141. Both are available at Peptides Costa Rica.
MT-II (Melanotan II) is studied for melanogenesis and skin tanning via MC1R activation on melanocytes; photo-protection research examining melanin's role in UV damage reduction; vitiligo and skin pigmentation disorder research; sexual function and arousal via MC4R signaling in the central nervous system; appetite suppression and energy balance regulation through MC3R/MC4R in the hypothalamus; and sebaceous gland activity research via MC5R. Its non-selective melanocortin agonism makes it one of the broadest-application peptides in the catalog.
MT-II is a cyclic heptapeptide analog of alpha-melanocyte-stimulating hormone (α-MSH) that binds to all four peripheral and central melanocortin receptors — MC1R, MC3R, MC4R, and MC5R. MC1R activation on melanocytes triggers the enzyme tyrosinase, initiating the conversion of tyrosine to melanin and producing skin darkening. MC3R and MC4R activation in the hypothalamus modulates appetite and energy homeostasis. MC4R activation in the central nervous system also mediates the pro-sexual effects documented in preclinical research. MC5R activation is associated with sebaceous and exocrine gland modulation.
Unreconstituted MT-II vials should be stored refrigerated at 2–8°C in lyophilized (powder) form, protected from light. Freezing is suitable for long-term storage. Once reconstituted with bacteriostatic water, keep the solution refrigerated and use within the timeframe outlined in your research protocol. MT-II is sensitive to light degradation — keep vials in a dark environment when not in use and minimize exposure during handling.
Orders inside Costa Rica are typically delivered within 2–4 business days. You'll receive tracking once shipped — no customs delays or import fees since everything is fulfilled domestically.
