SS-31

Szeto-Schiller Tetrapeptide (4 AA)

Price range: $40.00 through $110.00

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99%+ purity — HPLC verified with independent CoA

Shipped as Lyophilized (Freeze-Dried) Powder

Our peptides are shipped as a lyophilized (freeze-dried) powder because they are highly unstable in liquid form. Lyophilization removes almost all the water, preserving the peptide’s delicate structure and greatly extending its shelf life during transit.

To use a lyophilized peptide, it must be dissolved (reconstituted) using a sterile liquid, such as bacteriostatic water or saline, depending on the specific application.

After Reconstitution — Storage Guidelines

Refrigerate immediately
Store reconstituted peptides at 2–8°C. Never leave them at room temperature.
Sterile water has a shorter window
If reconstituted with plain sterile water, use within 48 hours or freeze in single-use aliquots.
BAC water extends shelf life
Peptides reconstituted with bacteriostatic water typically remain stable for 4–6 weeks at 2–8°C.
Avoid freeze-thaw cycles
Repeatedly freezing and thawing a reconstituted peptide causes degradation. Divide into single-use aliquots first.
Technical Specifications
CAS Number

736992-21-5

Molecular Weight

639.8 g/mol

Purity

99%+

Appearance

White lyophilized powder

Solubility

Soluble in water at 1 mg/mL

Storage

-20°C, desiccated. Stable 24 months lyophilized.

Research Overview

Szeto-Schiller peptide targeting the inner mitochondrial membrane. Researched for mitochondrial protective effects, reduction of oxidative stress, and cardioprotective properties in preclinical models.

Research Areas

Mitochondrial research

Oxidative stress

Cardioprotection

Longevity research

Research-use only. 21+ to enter.

Peptide Labs Canada supplies research-use-only materials to customers in Canada. Not for human consumption.

Are you 21 years of age or older?