Melanotan I · Shelf life
Melanotan I shelf life
Reconstituted Melanotan I is generally quoted at about 30 days refrigerated, roughly 60 days frozen, and only a few days at room temperature. Sealed powder keeps far longer. Enter the date you mixed it below for an exact expiry date.
A vial's clock starts when you mix it. Pick your situation below to see the expiry date and how long you have left. Nothing is stored or sent anywhere.
Reference only — purity, buffers and preservatives all change the answer, so the storage information supplied with your own vial takes precedence.
How long does Melanotan I last once mixed?
Reconstituted vials are generally quoted at about 30 days refrigerated. Frozen buys considerably longer, provided you freeze once rather than thawing and refreezing the same vial. At room temperature you are counting in days, not weeks.
Four things do the damage, in rough order: heat by a wide margin, then light, then repeated freeze–thaw cycles, then agitation. Swirl a vial to mix it rather than shaking it, and keep it in its box away from light.
Storing Melanotan I
LYOPHILIZED (unopened): store at 2-8°C (fridge) or -20°C (freezer) long-term. Protect from light. AFTER RECONSTITUTION: refrigerate 2-8°C. Do NOT freeze. Discard after 30 days OR if the solution becomes cloudy, discolored, or contains particulates.
Common questions
How long does Melanotan I last once mixed?
Commonly quoted at around 30 days when kept refrigerated. Frozen extends that considerably, provided you freeze it once rather than thawing and refreezing. At room temperature you are counting in days. Purity, buffers and preservatives all change the answer, so the information supplied with your own vial takes precedence.
Does Melanotan I need to be refrigerated?
Once reconstituted, refrigeration is the normal recommendation, and heat is by far the biggest cause of degradation. Sealed lyophilized powder is more tolerant but still keeps best cold and away from light.
Can I freeze Melanotan I?
Freezing once is generally considered fine and extends the usable window. Repeated freeze-thaw cycles are what cause damage, so splitting into smaller amounts before freezing means you only thaw what you need.
How do I tell how old my Melanotan I vial is?
Write the date you mixed it on the vial, or record it in a tracking app. Without that date there is no reliable way to know, which is the most common reason a vial gets used past its window or thrown away early.