Peptides are generally smaller and less complex than proteins. While peptides typically contain between 2 and 50 amino acids, proteins are larger chains composed of many amino acids that often perform structural, functional, or enzymatic roles within biological systems.

First Class Science LLC provides a diverse selection of research peptides and related laboratory materials intended for scientific investigation. Product categories include GLP-related peptides, growth hormone–related compounds, cognitive and neurological research peptides, immune and inflammatory research compounds, skin and hair research peptides, regenerative research peptides, and other materials designed for laboratory research applications.

All peptides offered by First Class Science LLC are synthetically manufactured using advanced peptide synthesis technologies designed to promote batch-to-batch consistency, high purity standards, and product stability. Each production lot is developed under controlled processes to support quality, reliability, and research-focused applications.

All products sold by First Class Science LLC are intended for Research Use Only (RUO) and are not intended for human or veterinary use. These products have not been evaluated, approved, or licensed by the U.S. Food and Drug Administration (FDA) for any therapeutic, diagnostic, or medical application.

No. Any human, veterinary, diagnostic, or therapeutic use is strictly prohibited.

No prescription is required because these products are sold solely for laboratory research purposes.

Providing dosage, administration, or usage instructions for research products would be inconsistent with their Research Use Only (RUO) designation and applicable regulatory requirements. As such, First Class Science LLC does not provide guidance regarding dosing, administration, or human or veterinary use of its products

Customers are solely responsible for ensuring their purchase, possession, handling, storage, and use of products obtained from First Class Science LLC comply with all applicable federal, state, local, and international laws, regulations, and restrictions. By purchasing from First Class Science LLC, customers acknowledge and accept full responsibility for compliance with all legal and regulatory requirements governing research compounds.

Yes. Each batch undergoes independent third-party analytical testing.

Yes. Every product includes a batch-specific Certificate of Analysis documenting molecular identity and purity.

Certificates of Analysis (COAs) are available for applicable products and batches. Customers may access available documentation through the First Class Science COA Library or request a copy directly from our support team.

Peptides are produced under controlled laboratory conditions but are not sterile-packaged for clinical or medical use.

Once reconstituted, peptides should be refrigerated at 2–8°C and used within an appropriate research timeframe.

Common research solvents include reconstitution solution, dilute acetic acid, or DMSO, depending on peptide properties. Researchers are responsible for determining appropriate solvents.

Stability varies by peptide, but many reconstituted peptides are typically stable for up to 28 days when properly stored.

Yes. Exposure to heat, moisture, light, or repeated freeze-thaw cycles can degrade peptides.

No. Products contain only the peptide compound listed, with no fillers or preservatives.

Yes. Certain research-formulated peptide blends are available for laboratory use.

You may contact us regarding special requests, though availability is not guaranteed.

At this time, First Class Science LLC does not offer custom peptide synthesis, contract manufacturing, or made-to-order peptide development services. Products available for purchase are limited to those listed in our current catalog and inventory.

Yes. Customers must be 21 years of age or older to purchase.

Yes. Checkout requires Know-Your-Customer (KYC) verification, including name, email, and one-time passcode (OTP).

Accepted payment methods are displayed during checkout.

A processing fee may apply and is disclosed clearly at checkout prior to payment authorization.

Yes. Volume discounts are applied automatically based on quantity.

There is no separate wholesale program; volume pricing applies to all customers.

No. First Class Science LLC maintains transparent and competitive pricing across its product catalog. Pricing is displayed on the website and reflects current product availability, specifications, and market conditions.

Occasional promotions may be offered, but pricing is primarily volume-based.

Most domestic orders arrive within 5-6 business days, depending on carrier.

Shipping insurance is optional and must be selected at checkout.

Without insurance, the customer assumes transit risk once the package is transferred to the carrier.

Responsibility transfers after carrier-confirmed delivery to the provided address.

Opened products may only be eligible if defective and documented promptly.

Contact support within the required timeframe with photos and order details.

After confirmed delivery, customers must contact the carrier or local authorities.

Orders may only be canceled before shipment.

Providing false or misleading information may result in account suspension or termination.

Yes. First Class Science LLC employs industry-standard administrative, technical, and physical security measures designed to protect customer information and maintain the confidentiality, integrity, and security of data collected through our website and business operations.

Data is shared only with service providers as outlined in our Privacy Policy.

Yes. Appeals may be submitted through customer support.

The customer is fully responsible for safe handling, storage, and lawful use.

Research compounds inherently carry risks and must be handled by qualified professionals.

No. Researchers must rely on their own institutional safety procedures.

No. Liability for misuse is disclaimed to the fullest extent permitted by law.

Include your order number, email address, and a detailed description of the issue.

Support hours are Monday–Friday during standard business hours.

Our Terms & Conditions, Privacy Policy, Disclaimer, and Waiver Agreement are available in the website footer.

First Class Science operates as a U.S.-based, online-only research supplier.