For laboratory research use only · Not for human or veterinary use

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Research use only · Lyophilized · 99% purity

Research peptides, supplied to specification.

Lyophilized powder sealed in tamper-evident vials and shipped with tracking. Supplied to qualified laboratories, academic institutions and independent investigators — strictly for in-vitro research.

  • 99%purity
  • Lyophilizedpowder
  • Tamper-evidentvial
  • Trackedshipping
BioLifeLab vials: tirzepatide, retatrutide, BPC-157, tesamorelin and MOTS-C
43
Compounds
Across 6 families
99
Ampoule sizes
One specification each
99%
Stated purity
Printed on every label
RUO
Research only
Not for human or veterinary use
The catalog

Explore the catalog

Every compound is supplied as a lyophilized powder to the same stated specification, in a range of ampoule sizes. The size you pick is really a question of how much material a protocol will consume before the vial is opened again.

Browse all peptides

Beyond purity

What “99% pure” doesn’t tell you

Purity is one line on a specification, and it is the line every supplier leads with. It is worth knowing what that number covers, what sits outside it, and which questions it was never meant to answer.

01 · What it measures

Purity is a percentage of area

A 99% figure normally comes from HPLC and describes how much of the sample sits under the main peak. It is a proportion of what was injected — not a statement about what the remaining 1% is.

Why it matters: two lots can share a number and differ in what makes up the remainder.
02 · Residual moisture

Freeze-dried is not bone dry

Lyophilization pulls water out by sublimation, and a second drying stage takes residual bound moisture down further. Whatever is left is a separate specification from purity.

Why it matters: moisture is what shortens the shelf life of a sealed vial.
03 · Identity

Purity assumes the peak is the peptide

A purity assay measures how much of one thing is present. Confirming that the thing is the sequence you ordered is a different measurement, normally by mass spectrometry.

Why it matters: a pure sample of the wrong compound still reads 99%.
04 · Lot to lot

A number describes one batch

Any purity figure belongs to the lot it was measured on. Whether the next vial matches is a question about consistency, which only repeat measurement answers.

Why it matters: a protocol validated on one lot has to survive the next one.

Purity is the floor. Not the ceiling.

Every BioLifeLab vial leaves as a freeze-dried powder under a tamper-evident closure, labelled for laboratory research use only — so what arrives is what the specification describes.

Why researchers choose us

What you can count on

01

One supplier, one specification

Tirzepatide, retatrutide, the wider peptide range, blends and NAD+ — all lyophilized to the same stated specification, so a programme can add a compound without changing supplier.

43 compounds
02

Lyophilized and sealed

Supplied as a white to off-white freeze-dried powder in a vial closed under a tamper-evident seal, so the closure itself shows whether it was disturbed.

Tamper-evident
03

Purity stated on the label

Every vial in the range carries the same 99% purity figure on its printed label rather than in a footnote.

99% stated
04

Cost falls with ampoule size

On tirzepatide, price per milligram drops from $20.00 at 5 mg to $3.75 at 120 mg, so the ampoule you choose is a question about protocol length.

5.3× spread
05

Labelled for research use

Products are labelled and sold for laboratory research use only, not for human or veterinary use.

RUO
06

A person to talk to

Phone and email reach the same team that handles the orders, including bulk and repeat schedules.

Direct contact
Background

Working with lyophilized peptides

A peptide is a short chain of amino acids, and in solution it is fragile — moisture and temperature degrade it steadily. Lyophilization removes the water without the material ever passing through a liquid phase: the solution is frozen below −40 °C, then the surrounding pressure is dropped so the ice sublimates directly to vapour. A second drying stage pulls residual bound moisture down further before the vial is closed.

What is left is a dry powder that can sit sealed far longer than the same peptide in solution. That is also why handling advice changes the moment a vial is opened. In its lyophilized state the compound is stable; reconstituted, it is not, and it should be prepared only in the quantity a protocol actually needs.

Sealed vials keep between 2 and 8 °C in a cool, dry place, shielded from direct sunlight. The tamper-evident closure is part of the specification rather than packaging: if a seal is already broken when the vial arrives, that vial should not be used, and we will replace it against photographs.

Ampoule size is the variable worth planning against the protocol rather than against the unit price. A small ampoule suits method development, where material is consumed slowly and a fresh reconstitution is cheap. Larger ones lower the cost per milligram sharply — on tirzepatide it falls from $20.00 at 5 mg to $3.75 at 120 mg — but they only pay off when the work will consume them before stability, not budget, becomes the limit.

Read the six-step process, from synthesis to sealed vial →

Bulk & repeat orders

Running a programme, not a one-off

If the work runs for months, the questions change: how much material a lot has to cover, how often it is reordered, and what the paperwork needs to say. Those are worth a conversation rather than a checkout.

  • All eight vial sizes on one order
  • One specification across the whole range
  • Cost per milligram falls as the vial grows
  • Compounds beyond the catalog quoted on request
Talk to us about an order
Cost per milligram, 5 mg → 60 mg
Questions

Frequently asked questions

What is lyophilized tirzepatide?

Lyophilized tirzepatide is the peptide freeze-dried to a dry powder. Freezing the solution and then sublimating the ice under vacuum removes the water without a liquid phase, which is what lets the peptide stay stable in storage. It is reconstituted with a suitable solvent when the research protocol calls for it.

What purity do BioLifeLab peptides ship at?

Every vial in the range ships at 99% purity as a white lyophilized powder, manufactured by Neopure Bioscience and sealed under a tamper-evident closure.

Which vial size should I order?

Smaller vials suit method development, where material is spent establishing a reconstitution protocol. Larger vials lower the cost per milligram and keep an extended run on a single lot, which removes lot-to-lot variation as a variable.

How should lyophilized peptides be stored?

Store the sealed vial in a cool, dry place away from direct sunlight, between 2 and 8 degrees Celsius. Once reconstituted a peptide is far less stable than in its lyophilized state, so prepare only what the protocol needs.

Are these products approved for human use?

No. Everything sold here is supplied strictly for laboratory research use. These are not FDA approved medications, they are not intended for human or veterinary use, and they are not intended to diagnose, treat, cure, or prevent any disease.

See all frequently asked questions →