The vial looks like it has less powder. Does that mean the MG is wrong?

Short answer: No.

The labeled milligram (mg) amount is measured by weight during filling, not by how much powder you see. Visual differences are normal and do not indicate a lower amount.

Why the vial can look “less” (and still be correct)

• Lyophilization shape: After freeze-drying, material can form a tall “cake,” a thin film, or small fragments. Shipping can also cause the cake to crack or collapse—purely cosmetic.
• Density & morphology: Different peptides dry with different densities and textures, so equal weights can occupy different volumes.
• Buffers/excipients: Some proteins/peptides include stabilizers (buffers/carriers) that create a larger-looking cake. Others have minimal excipients and can look small even at the same mg.
• Molecule size differences: Larger proteins (e.g., LR3) often appear bulkier than small peptides (e.g., mod GRF or GHRP). That’s expected and normal.

Quality & potency

• Each lot is filled and verified by weight.
• Appearance does not affect quality or potency for research use.

For lab calculations (research use only)

Base your reconstitution on the labeled mg, not the visual volume.

Example: If a vial is labeled 5 mg, adding 5 mL yields 1 mg/mL (adjust volumes as your protocol requires).

When to contact support

Reach out if you notice:

• Broken or compromised packaging/seals
• A label that doesn’t match your order
• A vial that appears empty beyond normal variation

Please include your order number and clear photos so we can help quickly.

RUO disclaimer: Products are for laboratory research use only. Not for human or veterinary consumption.