What liquid should I use to reconstitute Melanotan 2 10mg/vial?

Bacteriostatic water (BW) is the correct solvent for reconstituting Melanotan 2 when the vial will be used across multiple sessions. BW contains 0.9 % benzyl alcohol, which suppresses microbial growth in the reconstituted solution for up to 30 days when refrigerated. Plain sterile water is acceptable only if you plan to use the entire 10 mg vial in a single injection session, as it offers no preservative protection afterward.

How long can a reconstituted Melanotan 2 vial be kept in the refrigerator?

A Melanotan 2 vial reconstituted with bacteriostatic water remains stable for approximately 28–30 days when stored at 2–8 °C in a standard household refrigerator. Stability beyond this window is not guaranteed; peptide degradation accelerates above 8 °C or when the vial is repeatedly exposed to light. Always store reconstituted peptide in its original dark vial and never freeze it after the rubber stopper has been punctured.

What is the correct subcutaneous injection technique for Melanotan 2?

Draw the measured dose into an insulin syringe (typically a 29–31 gauge, 0.5 mL unit), pinch a fold of abdominal or thigh skin, and insert the needle at a 45-degree angle into the subcutaneous fat layer. Pull the plunger back slightly to confirm no blood enters the barrel, then depress slowly. Rotate injection sites with every session to minimise localised irritation and maintain tissue health over a multi-week protocol.

How do I calculate my dose from a 10 mg Melanotan 2 vial reconstituted with 2 mL of bacteriostatic water?

Adding 2 mL of bacteriostatic water to a 10 mg vial produces a 5 mg/mL (5,000 mcg/mL) solution. On a standard 100-unit insulin syringe, each 10 units (0.1 mL) equals 500 mcg of Melanotan 2. A common starting dose of 250 mcg therefore corresponds to drawing the plunger to the 5-unit mark. Confirm your target dose in mcg and divide by 5,000 mcg/mL to determine the exact volume in mL needed.

Does Knoll Pharmaceuticals test Melanotan 2 vials for purity before release?

Yes. Every batch of Knoll Pharmaceuticals Melanotan 2 10 mg/vial passes through two independent quality checkpoints before distribution. HPLC (High-Performance Liquid Chromatography) analysis verifies peptide identity and quantitative purity at the bulk API stage; LAL (Limulus Amebocyte Lysate) endotoxin screening then confirms the sterility of the finished vial. Both gates must return acceptable results — a failure at either stage disqualifies the entire batch. (2) angle_used

HPLC Verified

Knoll Pharmaceuticals

Melanotan 2 10mg/vial 1 Vial by Knoll Pharmaceuticals

Name: Melanotan 2 10mg/vial 1 Vial by Knoll Pharmaceuticals
Brand: Knoll Pharmaceuticals
SKU: PEPT-MEL2-KNO-002
Price: 30.00 EUR
Availability: InStock
Rating: 5 (2 reviews)

5 (2 reviews)

Knoll Pharmaceuticals Melanotan 2 10 mg/vial is a lyophilised synthetic melanocortin analogue in a single-use vial, formulated for researchers and bodybuilders who require a correctly reconstituted, refrigerated and subcutaneously administered peptide with a documented quality baseline. Each vial delivers 10 mg of Melanotan II as a freeze-dried powder, ready to be drawn up with bacteriostatic water and administered via insulin syringe for precise subcutaneous dosing across multiple sessions. Release standards are enforced at two sequential analytical checkpoints: HPLC confirms sequence identity and quantitative purity of the bulk API, while LAL endotoxin screening certifies the finished vial is free of pyrogenic contamination before dispatch.

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In stock

Ships within 48 h Lab-tested batch

HPLC-Verified purity at batch level — every vial confirmed against a defined peptide reference standard.
Lyophilised powder format preserves peptide integrity during shipping without cold-chain dependency pre-reconstitution.
10 mg fill per vial allows flexible dosing schedules from 250 mcg to 1 mg per session.
LAL endotoxin-screened finished vials reduce the risk of injection-site pyrogenic reactions.
Single-ingredient formulation with no excipient fillers allows straightforward, predictable reconstitution calculations.
Compatible with standard 29–31 gauge insulin syringes available at any pharmacy — no specialist equipment required.
Bacteriostatic water compatibility extends in-use shelf life up to 30 days refrigerated per vial.

Phase	Dosage	Note
Reconstitution	Add 2 mL bacteriostatic water → 5,000 mcg/mL	Use aseptic technique; inject BW down the vial wall, do not shake — swirl gently until powder fully dissolves.
Loading Phase (Weeks 1–2)	250–500 mcg subcutaneously once daily	Begin at the 250 mcg lower end to assess individual tolerance before escalating; administer in the evening to minimise nausea.
Maintenance Phase (Weeks 3+)	500 mcg subcutaneously every 2–3 days	Frequency reduction maintains pigmentation response while lowering cumulative peptide exposure per week.
Storage Between Sessions	Keep reconstituted vial at 2–8 °C	Discard 30 days after reconstitution regardless of remaining volume; label vial with reconstitution date.

Key takeaways

Reconstitute each 10mg vial using bacteriostatic water for multi-session safety.
Store reconstituted peptide at 2–8 °C; never freeze after puncturing the stopper.
Inject subcutaneously at 45 degrees, rotating sites every session.
Calculate doses precisely: 2 mL BW yields 500 mcg per 0.1 mL drawn.
Confirm purity: every vial passes HPLC and LAL endotoxin testing at Knoll.

Melanotan 2: A Lyophilised Melanocortin Peptide Requiring Precise Reconstitution and Cold-Chain Handling

Melanotan 2 is a seven-amino-acid cyclic analogue of alpha-melanocyte-stimulating hormone (α-MSH), supplied by Knoll Pharmaceuticals as a lyophilised powder in a 10 mg single-dose vial that must be reconstituted with bacteriostatic water before subcutaneous administration. Unlike pre-mixed liquid peptide solutions, the freeze-dried format preserves molecular integrity for months when kept refrigerated, making proper cold-chain management a critical part of effective use. Knoll Pharmaceuticals certifies each batch through HPLC analysis, confirming that the active peptide content matches label claim before the vial reaches the end user.

Reconstitution: Step-by-Step for Accurate Dosing

Bacteriostatic water is the standard solvent for reconstituting Melanotan 2 because its 0.9 % benzyl alcohol content inhibits microbial growth across multiple draw sessions — plain sterile water lacks this protection and should only be used when the entire vial will be consumed in a single sitting. A common reconstitution ratio is 2 mL of bacteriostatic water per 10 mg vial, yielding a concentration of 5 mg/mL (5,000 mcg/mL); a 0.1 mL draw with a 100-unit insulin syringe therefore delivers 500 mcg per injection. Compared to pre-dissolved peptide vials, which begin degrading immediately upon manufacture, lyophilised Melanotan 2 reconstituted under aseptic conditions retains ≥ 95 % potency for up to 30 days refrigerated, according to standard peptide stability data referenced in pharmaceutical reconstitution guidelines.

Storage, Cold-Chain and Injection Technique

Knoll Pharmaceuticals' lyophilised Melanotan 2 vials should be stored at 2–8 °C (standard refrigerator temperature) prior to reconstitution; the powder must never be frozen once the vial has been punctured. Subcutaneous injection into the pinched skin of the abdomen or thigh is the preferred delivery route: the insulin syringe penetrates at a 45-degree angle, the plunger is drawn back briefly to confirm no blood return, and the dose is deposited slowly into the subcutaneous fat layer. Rotating injection sites session-to-session reduces localised tissue irritation — a practical advantage documented by subcutaneous peptide administration protocols used in clinical peptide research settings.

Key Analytical Assurances

HPLC purity screening confirms Melanotan 2 sequence fidelity at the bulk API stage, while LAL (Limulus Amebocyte Lysate) endotoxin testing verifies sterility of the finished vial. These two checkpoints address entirely separate quality risks: sequence impurity versus pyrogen contamination. Together they form the HPLC-Verified release standard that underpins every Knoll Pharmaceuticals peptide vial.

Usage

Gather supplies: Knoll Pharmaceuticals Melanotan 2 10 mg vial, bacteriostatic water ampule, two alcohol swabs, one 2 mL draw syringe, and one 29–31 gauge insulin syringe for administration.
Wipe the rubber stopper of both the MT-2 vial and the bacteriostatic water vial with separate alcohol swabs and allow 30 seconds for the alcohol to evaporate fully.
Using the draw syringe, pull 2 mL of bacteriostatic water and inject it slowly down the inner wall of the MT-2 vial — never aim the stream directly at the powder cake to avoid foaming or peptide degradation.
Swirl the vial gently in a circular motion for 30–60 seconds until the powder dissolves completely into a clear, colourless solution; do not shake or vortex the vial.
Draw your calculated dose into the insulin syringe (e.g. 5 units = 250 mcg based on a 5,000 mcg/mL concentration), expel any air bubbles by tapping and pressing the plunger upward.
Pinch the skin at a clean, rotated subcutaneous site (abdomen or outer thigh), insert the needle at 45 degrees, confirm no blood flashback, inject slowly, withdraw smoothly and apply gentle pressure with a dry swab — recap the insulin syringe safely and dispose according to sharps regulations.

Warnings

Contraindications: Melanotan 2 is not suitable for individuals with a personal or family history of melanoma or dysplastic naevi, as MC1R pathway stimulation may theoretically influence existing atypical pigmented lesions. Pregnant or breastfeeding women must not use this peptide. Individuals with severe cardiovascular disease, uncontrolled hypertension, or known hypersensitivity to melanocortin analogues should avoid use entirely.

Side Effects: Commonly reported effects include transient nausea (most frequent within 30–60 minutes of injection, especially during the loading phase), facial flushing, spontaneous erections, and mild fatigue. Less common effects include yawning, darkening of pre-existing moles, and localised injection-site redness. Stretching or newly symptomatic moles should prompt immediate dermatological evaluation and discontinuation.

Monitoring: Conduct a full-body mole mapping with a dermatologist before beginning any Melanotan 2 protocol and repeat the assessment every 3 months during active use. Monitor blood pressure at the start of each loading phase, as transient elevations have been noted. Photograph existing pigmented lesions weekly to detect any change in size, shape or colour attributable to MC1R stimulation.

PCT: Melanotan 2 does not suppress the hypothalamic-pituitary-gonadal (HPG) axis and therefore does not require hormonal post-cycle therapy. A standard washout period of 4–6 weeks between active dosing cycles is nonetheless recommended to prevent receptor desensitisation and to allow dermatological monitoring before resuming.

Frequently asked questions

What liquid should I use to reconstitute Melanotan 2 10mg/vial?: Bacteriostatic water (BW) is the correct solvent for reconstituting Melanotan 2 when the vial will be used across multiple sessions. BW contains 0.9 % benzyl alcohol, which suppresses microbial growth in the reconstituted solution for up to 30 days when refrigerated. Plain sterile water is acceptable only if you plan to use the entire 10 mg vial in a single injection session, as it offers no preservative protection afterward.
How long can a reconstituted Melanotan 2 vial be kept in the refrigerator?: A Melanotan 2 vial reconstituted with bacteriostatic water remains stable for approximately 28–30 days when stored at 2–8 °C in a standard household refrigerator. Stability beyond this window is not guaranteed; peptide degradation accelerates above 8 °C or when the vial is repeatedly exposed to light. Always store reconstituted peptide in its original dark vial and never freeze it after the rubber stopper has been punctured.
What is the correct subcutaneous injection technique for Melanotan 2?: Draw the measured dose into an insulin syringe (typically a 29–31 gauge, 0.5 mL unit), pinch a fold of abdominal or thigh skin, and insert the needle at a 45-degree angle into the subcutaneous fat layer. Pull the plunger back slightly to confirm no blood enters the barrel, then depress slowly. Rotate injection sites with every session to minimise localised irritation and maintain tissue health over a multi-week protocol.
How do I calculate my dose from a 10 mg Melanotan 2 vial reconstituted with 2 mL of bacteriostatic water?: Adding 2 mL of bacteriostatic water to a 10 mg vial produces a 5 mg/mL (5,000 mcg/mL) solution. On a standard 100-unit insulin syringe, each 10 units (0.1 mL) equals 500 mcg of Melanotan 2. A common starting dose of 250 mcg therefore corresponds to drawing the plunger to the 5-unit mark. Confirm your target dose in mcg and divide by 5,000 mcg/mL to determine the exact volume in mL needed.
Does Knoll Pharmaceuticals test Melanotan 2 vials for purity before release?: Yes. Every batch of Knoll Pharmaceuticals Melanotan 2 10 mg/vial passes through two independent quality checkpoints before distribution. HPLC (High-Performance Liquid Chromatography) analysis verifies peptide identity and quantitative purity at the bulk API stage; LAL (Limulus Amebocyte Lysate) endotoxin screening then confirms the sterility of the finished vial. Both gates must return acceptable results — a failure at either stage disqualifies the entire batch. (2) angle_used

Manufacturer

Melanotan 2 10 mg/vial leaves Knoll Pharmaceuticals' production line only after satisfying two sequentially ordered, analytically distinct release criteria — neither of which can stand in for the other. First in sequence: the bulk Melanotan 2 active pharmaceutical ingredient is characterised by HPLC (High-Performance Liquid Chromatography), with each batch's chromatographic profile evaluated against a seven-residue peptide-specific reference standard to confirm both sequence identity and quantitative purity; any batch whose purity falls below the acceptance specification is rejected before filling commences. Second in sequence: the finished, lyophilised vials undergo LAL (Limulus Amebocyte Lysate) endotoxin testing — a bioassay that quantifies bacterial pyrogen load in the final container and cannot be replaced by the upstream HPLC result, since chromatographic analysis addresses molecular identity, not endotoxin contamination. Only vials clearing both checkpoints carry the HPLC-Verified designation and proceed to distribution.

Product details

Brand	Knoll Pharmaceuticals
Active ingredient	melanotan 2
Also known as	Melanotan II, MT-2, Melanotan 2, Knoll Pharmaceuticals Melanotan II
Strength	10 mg
Form	Vial
Pack size	1 piece
Item number	PEPT-MEL2-KNO-002

Reviews

5/5

2 reviews

Rating: 5 out of 5 starsLloydVerified purchaseJul 30, 2026
Tan and libido both elite
Started loading at 0.25mg daily for 2 weeks then dropped to 0.5mg twice a week maintenance. Tan came in properly by week 3 even with only 20 mins sun a day, people at the gym thought I'd been abroad 😂 Libido went through the roof in week 1, wife noticed before I told her what I was running. Nausea on the first few shots if I dosed too high but 0.25mg was totally manageable. 10mg vial is great value at this price.
Rating: 5 out of 5 starsassassinVerified purchaseJun 25, 2026
mT2 does exactly what you expect
Used MT2 a couple of times before from other sources so I know what legit feels like. this hits the same, loading phase nausea on day 2 and 3 told me it was real, facial flushing, the yawning, the spontaneous libido. Tan developed quickly even in UK October weather with a sunbed twice a week. 10mg vial reconstituted clean and lasted through a full loading phase plus wks of maintenance. Discrete shipping, no issues. Top quality.

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Reviews are written by users of this shop and are checked editorially before publication. Unless labelled “Verified purchase”, we do not verify that the review is based on an actual purchase.

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