We compare, we don't sell.Some links pay us. How we make money
Peptide Chooser

Peptides for sex drive, compared with the approved option.

Peptide Chooser editorial team. Last updated 30 Oct 2026. Every claim links to its source. Prices checked 2 Nov 2026.

One peptide is FDA approved here: bremelanotide, sold as Vyleesi, for low sexual desire in premenopausal women, on prescription. The PT-141 sold by research-use shops is the same molecule without the approval, the dose control or the checks. Melanotan II, a tanning peptide also sold for libido, is approved nowhere.

Compare the options

Is it legal today?

For low desire or arousal: one approved option for women, and what the online "PT-141" really is.

  • Bremelanotide (Vyleesi)FDA approved

    A shot you take before sex, approved for low sexual desire in premenopausal women.

    FDA approved.

    Prescription.

    Online clinic
  • PT-141 from online shopsNot an approved product

    The same molecule as Vyleesi, sold without a prescription by research-use shops: no dose control, no checks.

    Not an approved product.

    We do not link to them.

    Prices at 10 shops
  • Melanotan IINot approved

    A tanning peptide also sold "for libido". Linked to serious side effects; never approved anywhere.

    Not approved for any use.

    We do not link to them.

    Prices at 10 shops

Every option, side by side

3 options, each with its FDA status and how you get it.

OptionFDA statusHow you get it
Bremelanotide (Vyleesi)A shot you take before sex, approved for low sexual desire in premenopausal women. FDA approvedFDA approved. Prescription.
PT-141 from online shopsThe same molecule as Vyleesi, sold without a prescription by research-use shops: no dose control, no checks. Not an approved productNot an approved product. We do not link to them.
Melanotan IIA tanning peptide also sold "for libido". Linked to serious side effects; never approved anywhere. Not approvedNot approved for any use. We do not link to them.

PT-141 from online shops

Research-use sellers. We do not link to them. Prices checked 2 Nov 2026.

SellerProductPricePer mgBackground check
Iron AminosPT-141 10mg, 10 Vials100 mg$209.99$2.10/mg4 of 5 checksLab reports: yesNo FDA letter: yesCompany found: yesLegal pages: noFresh prices: yesThis product: COA yes (5)FDA warning letters: noneCompany: Iron Aminos LLC, FLStatus: activeFirst seen: Oct 2026Price checked: 27 Oct 2026
Step One VenturesPT-141 10mg10 mg$20.00$2.00/mg4 of 5 checksLab reports: yesNo FDA letter: yesCompany found: yesLegal pages: noFresh prices: yesThis product: no COAFDA warning letters: noneCompany: Step One Ventures LLC, FLStatus: activeFirst seen: Oct 2026Price checked: 27 Oct 2026
IDUN PeptidesPT-141, 10mg (10 Vials)100 mg$159.99$1.60/mg4 of 5 checksLab reports: yesNo FDA letter: yesCompany found: yesLegal pages: noFresh prices: yesThis product: COA yes (2)FDA warning letters: noneCompany: IDUN Peptides LLC, FLStatus: activeFirst seen: Oct 2026Price checked: 27 Oct 2026
Go Alpha Labs (AlphaLabs Peptides)PT-141 Liquid Spray30 mg$34.99$1.17/mg3 of 5 checksLab reports: yesNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yesThis product: COA yes (4)FDA warning letters: noneCompany: not verifiedStatus: activeFirst seen: Oct 2026Price checked: 19 Oct 2026
Rocky Mountain CompoundsPT141 - 10mg10 mg$30.00$3.00/mg3 of 5 checksLab reports: yesNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yesThis product: COA yes (1)FDA warning letters: noneCompany: not verifiedStatus: activeFirst seen: Oct 2026Price checked: 20 Oct 2026
Lost Coast AminosPT-141 - 11mg11 mg$23.00$2.09/mg3 of 5 checksLab reports: yesNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yesThis product: COA yes (1)FDA warning letters: noneCompany: not verifiedStatus: activeFirst seen: Oct 2026Price checked: 30 Oct 2026
Panda PeptidesPT-141 10mg10 mg$28.00$2.80/mg3 of 5 checksLab reports: yesNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yesThis product: COA yes (3)FDA warning letters: noneCompany: not verifiedStatus: activeFirst seen: Oct 2026Price checked: 27 Oct 2026
Silverstone Labs Co.PT-141 10mg10 mg$24.00$2.40/mg3 of 5 checksLab reports: yesNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yesThis product: no COAFDA warning letters: noneCompany: not verifiedStatus: activeFirst seen: Oct 2026Price checked: 27 Oct 2026
TCore BiotechPT-141 - 10mg10 mg$27.99$2.80/mg3 of 5 checksLab reports: yesNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yesThis product: no COAFDA warning letters: noneCompany: not verifiedStatus: activeFirst seen: Oct 2026Price checked: 29 Oct 2026
Chimera PeptidesPT-141, 10mg x 20vials200 mg$200.00$1.00/mg2 of 5 checksLab reports: noNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yesThis product: no COAFDA warning letters: noneCompany: not verifiedStatus: activeFirst seen: Oct 2026Price checked: 18 Oct 2026

Price per mg is price divided by the stated amount; blends have no per-mg price.

Checks are facts we hold about the seller, not a safety or quality grade. Checked 2 Nov 2026.

  1. Iron Aminos, PT-141 10mg, 10 Vials, 27 Oct 2026: https://ironaminos.com/product/pt-141-10mg/
  2. Step One Ventures, PT-141 10mg, 27 Oct 2026: https://s1research.net/product/pt-141/
  3. IDUN Peptides, PT-141, 10mg (10 Vials), 27 Oct 2026: https://idunpeptides.com/research-peptides/pt-141/
  4. Go Alpha Labs (AlphaLabs Peptides), PT-141 Liquid Spray, 19 Oct 2026: https://goalphalabs.com/product/pt-141-spray/
  5. Rocky Mountain Compounds, PT141 - 10mg, 20 Oct 2026: https://rmcompounds.com/product/pt141-10mg/
  6. Lost Coast Aminos, PT-141 - 11mg, 30 Oct 2026: https://lostcoastaminos.com/product/pt-141-10mg-vial/
  7. Panda Peptides, PT-141 10mg, 27 Oct 2026: https://pandapeptides.com/product/pt-141/
  8. Silverstone Labs Co., PT-141 10mg, 27 Oct 2026: https://silverstonelabsco.com/product/pt-141/
  9. TCore Biotech, PT-141 - 10mg, 29 Oct 2026: https://tcorebiotech.com/product/pt-141-10mg/
  10. Chimera Peptides, PT-141, 10mg x 20vials, 18 Oct 2026: https://chimera-peptides.com/product/pt-141/

Melanotan II

Research-use sellers. We do not link to them. Prices checked 2 Nov 2026.

SellerProductPricePer mgBackground check
Iron AminosMelanotan-2 (MT-2) 10mg, 10 Vials100 mg$169.99$1.70/mg4 of 5 checksLab reports: yesNo FDA letter: yesCompany found: yesLegal pages: noFresh prices: yesThis product: COA yes (2)FDA warning letters: noneCompany: Iron Aminos LLC, FLStatus: activeFirst seen: Oct 2026Price checked: 27 Oct 2026
IDUN PeptidesMelanotan II, 10mg (10 Vials)100 mg$129.99$1.30/mg4 of 5 checksLab reports: yesNo FDA letter: yesCompany found: yesLegal pages: noFresh prices: yesThis product: COA yes (1)FDA warning letters: noneCompany: IDUN Peptides LLC, FLStatus: activeFirst seen: Oct 2026Price checked: 18 Oct 2026
Go Alpha Labs (AlphaLabs Peptides)Melanotan II (MT2) (10mg) (10 Vials)100 mg$209.99$2.10/mg3 of 5 checksLab reports: yesNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yesThis product: COA yes (1)FDA warning letters: noneCompany: not verifiedStatus: activeFirst seen: Oct 2026Price checked: 18 Oct 2026
RUOMelanotan II (MT-2) 10mg10 mg$28.00$2.80/mg3 of 5 checksLab reports: yesNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yesThis product: no COAFDA warning letters: noneCompany: not verifiedStatus: activeFirst seen: Oct 2026Price checked: 27 Oct 2026
Swiss Chems (Swisschems)Melanotan II, 10mg, Vial10 mg$27.96$2.80/mg3 of 5 checksLab reports: yesNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yesThis product: COA yes (2)FDA warning letters: noneCompany: not verifiedStatus: activeFirst seen: Oct 2026Price checked: 18 Oct 2026
Polaris PeptidesMelanotan II 17mg17 mg$45.00$2.65/mg3 of 5 checksLab reports: yesNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yesThis product: no COAFDA warning letters: noneCompany: not verifiedStatus: activeFirst seen: Oct 2026Price checked: 27 Oct 2026
Panda PeptidesMelanotan II (MT-2) 10mg10 mg$24.99$2.50/mg3 of 5 checksLab reports: yesNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yesThis product: COA yes (3)FDA warning letters: noneCompany: not verifiedStatus: activeFirst seen: Oct 2026Price checked: 27 Oct 2026
Silverstone Labs Co.MT2 10 mg10 mg$19.00$1.90/mg3 of 5 checksLab reports: yesNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yesThis product: COA yes (2)FDA warning letters: noneCompany: not verifiedStatus: activeFirst seen: Oct 2026Price checked: 27 Oct 2026
Chimera PeptidesMelanotan 2, 10mg x 20vials200 mg$200.00$1.00/mg2 of 5 checksLab reports: noNo FDA letter: yesCompany found: noLegal pages: noFresh prices: yesThis product: no COAFDA warning letters: noneCompany: not verifiedStatus: activeFirst seen: Oct 2026Price checked: 18 Oct 2026
AtomixMelanotan 2 (10 mg)10 mg$24.99$2.50/mg1 of 5 checksLab reports: noNo FDA letter: noCompany found: noLegal pages: noFresh prices: yesThis product: no COAFDA warning letters: 1Company: not verifiedStatus: activeFirst seen: Oct 2026Price checked: 27 Oct 2026

Price per mg is price divided by the stated amount; blends have no per-mg price.

Checks are facts we hold about the seller, not a safety or quality grade. Checked 2 Nov 2026.

  1. Iron Aminos, Melanotan-2 (MT-2) 10mg, 10 Vials, 27 Oct 2026: https://ironaminos.com/product/melanotan-2-mt-2-10mg/
  2. IDUN Peptides, Melanotan II, 10mg (10 Vials), 18 Oct 2026: https://idunpeptides.com/research-peptides/melanotan-ii/
  3. Go Alpha Labs (AlphaLabs Peptides), Melanotan II (MT2) (10mg) (10 Vials), 18 Oct 2026: https://goalphalabs.com/product/melanotan-ii-wholesale/
  4. RUO, Melanotan II (MT-2) 10mg, 27 Oct 2026: https://ruo.bio/product/melanotan-ii-mt-2-10mg/
  5. Swiss Chems (Swisschems), Melanotan II, 10mg, Vial, 18 Oct 2026: https://swisschems.is/product/melanotan-ii-10mg/
  6. Polaris Peptides, Melanotan II 17mg, 27 Oct 2026: https://polarispeptides.com/product/melanotan-ii-17mg/
  7. Panda Peptides, Melanotan II (MT-2) 10mg, 27 Oct 2026: https://pandapeptides.com/product/mt-2/
  8. Silverstone Labs Co., MT2 10 mg, 27 Oct 2026: https://silverstonelabsco.com/product/mt2-10-mg/
  9. Chimera Peptides, Melanotan 2, 10mg x 20vials, 18 Oct 2026: https://chimera-peptides.com/product/melanotan-2/
  10. Atomix, Melanotan 2 (10 mg), 27 Oct 2026: https://atomixresearch.com/product/melanotan-2-10-mg/