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Laboratory research compound — in vitro use only
Retatrutide is supplied strictly as a laboratory research material for qualified scientific personnel. It is not approved, intended or authorised for human consumption, self-administration, diagnostic, therapeutic or veterinary use. By purchasing you confirm you are a qualified researcher buying for legitimate in vitro research.
Retatrutide is supplied strictly as a laboratory research material for qualified scientific personnel. It is not approved, intended or authorised for human consumption, self-administration, diagnostic, therapeutic or veterinary use. By purchasing you confirm you are a qualified researcher buying for legitimate in vitro research.
Retatrutide — All Strengths In Stock
Choose your vial size below. Larger vials offer the best value per milligram. Reconstitute with bacteriostatic water — see our reconstitution guide.
Retatrutide 5mg
LY3437943 · entry vial
Retatrutide 10mg
LY3437943 · popular
Retatrutide 15mg
LY3437943 · lyophilised
Retatrutide 20mg
LY3437943 · lyophilised
Retatrutide 30mg
LY3437943 · lyophilised
Retatrutide 40mg
LY3437943 · lyophilised
Retatrutide 50mg
LY3437943 · lyophilised
Retatrutide 60mg
LY3437943 · best value
Reconstituting your vials? Add bacteriostatic water to your order — free with every order over £150.
Why researchers buy Retatrutide from RS Bio Labs
99%+
Verified Purity
Every batch is independently HPLC and mass-spec tested.
£0
UK Shipping
Free UK shipping with no minimum spend, dispatched within 1–2 business days in discreet, unbranded packaging. International shipping is a flat fee.
8
Strengths Stocked
From 5mg entry vials to 60mg best-value vials, so you can match quantity to your research protocol without over-ordering.
1–2
Day Dispatch
Order before 3pm on a business day and we dispatch the same day — UK next-day delivery available, with tracking sent by email.
New to Retatrutide?
Read What Is Retatrutide? for the mechanism and trial data, compare it in Retatrutide vs Tirzepatide, or see the full research summary. Handling guides: reconstitution · storage · half-life.
Buying Retatrutide — FAQs
Which Retatrutide strength should I order?
That depends entirely on your research protocol. Smaller 5–10mg vials suit shorter studies or first evaluations; larger 30–60mg vials give the best value per milligram for extended work. All are the same ≥99%-purity compound — only the quantity per vial differs.
How fast is UK delivery?
Free UK shipping with no minimum spend. Order before 3pm on a business day and we dispatch the same day, with UK next-day delivery available. Standard tracked orders arrive in 1–2 business days. International orders ship at a flat fee.
Is Retatrutide legal to buy for research?
Retatrutide is supplied strictly as a research reagent for in vitro laboratory use, not for human consumption. It is an investigational compound not approved by the MHRA or FDA. By purchasing you confirm you are a qualified researcher.
Learn more about Retatrutide
What Is Retatrutide?
Mechanism, trial data and significance of the LY3437943 triple agonist.
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Retatrutide vs Tirzepatide
Triple vs dual agonist compared head to head.
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Reconstituting Retatrutide
Mixing ratios and worked concentration examples.
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Retatrutide FAQs
Every common question about the compound, answered.
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