How to Submit Samples

1 Before You Start

📋 Information You'll Need

Peptide identification: Name, sequence, or chemical formula (e.g., BPC-157, Semaglutide, TB-500)
Batch/lot number: If available from your supplier
Sample quantity: How much you're submitting (minimum 1-2 mg for most tests)
Physical form: Lyophilized powder, reconstituted solution, or liquid
Storage conditions: How the sample has been stored (frozen, refrigerated, room temp)
Existing documentation: Any prior COAs or lab reports (optional but helpful)

✅ Submission Requirements Checklist

✓ Age Verification: You must be 18 years or older

✓ Research Use Statement: Confirm samples are "for research purposes only – not for human or veterinary consumption"

✓ Legal Compliance: Accept responsibility for compliance with all federal, state, and local laws

✓ U.S. Address: Domestic U.S. shipping only (no international shipments)

✓ Contact Information: Valid email, phone number, and shipping address

✓ Safety Information: Disclose any known hazards (provide SDS if available)

⚠️ We Cannot Accept

Samples intended for human consumption, injection, or clinical use
Samples intended for veterinary diagnostic or therapeutic use
Controlled substances or Schedule I-V compounds
International shipments (U.S. domestic only)
Samples from individuals under 18 years of age

2 Prepare Your Sample

📦 Sample Requirements by Test Type

Test	Minimum Sample	Preferred Form
HPLC Purity	1-2 mg	Lyophilized powder
Mass Spectrometry	0.5-1 mg	Powder or solution
Sterility Testing	5-10 mg or 1 mL	Sealed vial (unopened preferred)
Heavy Metals	5-10 mg	Lyophilized powder
Endotoxin (LAL)	2-5 mg	Powder or solution
Complete Package	15-20 mg	Lyophilized powder

✅ DO

Use original sealed vials when possible
Use screw-cap microcentrifuge tubes (1.5-2.0 mL)
Wrap vial caps with parafilm or lab tape
Place vials in secondary leak-proof container
Include desiccant packs for powder samples
Label each vial clearly with peptide name

❌ DON'T

Use flip-top or snap-cap tubes (can leak)
Submit samples in plastic bags only
Submit wet or contaminated samples
Mix multiple peptides in one container
Use damaged or cracked vials
Submit unlabeled samples

💡 Pro Tip: Lyophilized Samples

Lyophilized (freeze-dried) powder samples are most stable for shipping and provide the most accurate results. If your sample is reconstituted, ship frozen with dry ice when possible.

3 Package & Ship

📦 Packaging Instructions

Layer 1: Primary Container

Place sample in screw-cap vial or original sealed container. Wrap cap with parafilm or lab tape to prevent loosening.

Layer 2: Secondary Containment

Place vial in a leak-proof ziplock bag or sealed plastic container. Add absorbent material (paper towel) to cushion.

Layer 3: Temperature Control (if needed)

For temperature-sensitive samples: Use frozen gel packs (2-8°C) or dry ice (-78°C). Wrap ice packs to prevent direct contact with sample.

Layer 4: Outer Packaging

Place everything in a padded envelope or insulated shipping box. Include your printed submission form inside.

📋 Shipping Checklist

✓ Carrier: Use FedEx or UPS overnight shipping (USPS not recommended)

✓ Timing: Ship Monday-Wednesday to avoid weekend delays

✓ Label: Mark package "Research Peptides – Not for Human Consumption – Handle with Care"

✓ Documentation: Include printed submission form with order number inside package

✓ Tracking: Save tracking number and email it to lab@ghklab.com

✓ Signature: Require signature on delivery for chain of custody

⚠️ Temperature-Sensitive Samples

If your peptide requires cold storage:

Refrigerated (2-8°C): Use frozen gel packs in insulated box
Frozen (-20°C or below): Use dry ice (minimum 5 lbs for overnight)
Note: Dry ice requires special shipping labels (Class 9 hazmat for air)
Ship Monday-Tuesday only to ensure delivery before weekend

4 Receive Your Results

⏱️ Turnaround Times

Test	Standard	Rush (+$150)
HPLC Purity	3-5 business days	24-48 hours
Mass Spectrometry	3-5 business days	24-48 hours
Full Identity Package	5-7 business days	48-72 hours
Sterility Testing	7-10 business days	5-7 days
Complete Analysis	10-14 business days	7-10 days

*Turnaround begins when sample is received and payment is confirmed.

📧 Digital Report Delivery

Secure PDF emailed to your registered email
Full Certificate of Analysis (COA)
Chromatograms and spectra included
Interpretation and summary
Digital signature for authenticity

📦 Sample Return (Optional)

Unused portion returned upon request
Shipped in sterile, sealed container
Cold chain maintained as needed
Overnight shipping with tracking
Additional fee may apply

📊 What's Included in Your Report

Every COA includes: Sample identification, test methodology, results with specifications, pass/fail determination, chromatograms/spectra (where applicable), analyst signature, and date of analysis. Reports are suitable for research documentation and quality records.

How to Submit Samples for Testing