Frequently Asked Questions
Product
These products are intended for laboratory research purposes only, and are not for human or animal consumption. The products are not intended to diagnose, treat, cure, or prevent any disease. The products should not be used as a food, drug, cosmetic, or other household use. By accessing this website or purchasing from this website, you agree that that it is your sole responsibility to ensure compliance with applicable laws and regulations within your jurisdiction; and you understand and acknowledge that no information on this website should be construed as medical advice.
Please review our Terms of Service.
We verify every batch of every product through accredited, independent third-party laboratories. Since each product requires unique analytical methods and equipment, we collaborate with specialized laboratories and PhDs in analytical and organic chemistry to design our testing protocols.
Analytical techniques we utilize include: NMR, FTIR, HPLC, LC-MS, GC-MS, TLC, ICP-MS, Gravimetry, UV-Vis, Titration, Melting Point, and Organoleptics.
We primarily test for purity, content, sterility, and endotoxins (LPS).
If a specific test is outdated or not listed, please contact us.
Variations in color, texture, odor or even biochemical properties may occur due to polymorphy (differences in crystal structure).These variations do not compromise product quality.
Our peptides are provided in lyophilized powder form to ensure maximum stability. In any other format, peptide integrity would rapidly degrade before reaching the customer.
- Optimal storage: Below –20 °C.
- Short-term storage: Refrigeration at 4 °C for up to 2 years.
- Room temperature tolerance: 4–6 weeks with minimal degradation if protected from direct sunlight (suitable for international shipping).
Images on our site display white tops for illustration purposes only. In practice, vial tops may vary in color to help our staff distinguish products during processing.
Lyophilized peptides typically form a solid cake. However, during transit, the cake may break or appear uneven. This is an aesthetic issue only and does not impact quality, potency, or purity.
Some peptides and proteins may appear larger due to buffering requirements. This is normal.
Storage instructions are provided on each product listing and product label.
- General storage: Store in a cool, dry place away from heat, moisture, and sunlight.
- Best practice: Refrigeration or freezing is recommended for long-term stability.
Solution-based products may occasionally:
- Crystallize (form flakes)
- Precipitate (fall out of suspension)
- Separate (form layers)
- Lose homogeneity
This typically occurs during cold transit or accidental freezing. To restore uniformity:
- Warm the vial in 50–70 °C water for 5–10 minutes.
- Shake vigorously to re-suspend.
If the product does not return to homogeneity, please contact us.
All molecules degrade over time, but proper storage significantly slows this process.
- Low temperature exposure: Generally safe; may cause precipitation in solutions but does not accelerate degradation.
- High temperature exposure: Prolonged exposure may accelerate degradation.
- Example: A product requiring room temperature storage exposed to 115 °F for a few days will not show measurable degradation once properly stored again.
- Cold-storage products (–20 °C): Short-term exposure (<24h) to ambient temperatures does not significantly degrade the product unless oxygen, moisture, or sunlight are also present.
These products are intended for laboratory research purposes only, and are not for human or animal consumption. The products are not intended to diagnose, treat, cure, or prevent any disease. The products should not be used as a food, drug, cosmetic, or other household use.
In the event of accidental exposure or ingestion:
- Contact your local toxicologist.
United States: Poison Help Line — 1-800-222-1222 - Seek immediate medical attention.
- Always handle products using proper PPE.
- Refer to the product’s SDS for safety guidelines.
Shipping
Orders placed before 12:00 PM PST typically ship the same day (about 90% of the time). Orders placed after 12:00 PM PST will ship the following business day.
Our shipping hours are Monday–Friday, 9:00 AM to 5:00 PM PST. We do not ship on Saturdays, Sundays, or federal holidays.
Processing times: Typically 1-3 business days depending on payment method. Large or special orders may require an additional 1-3 business days.
Shipping times vary based on selected shipping speed:
Standard Shipping: 3-6 business days
Express Shipping: 2-4 business days
Free Shipping: 2-4 business days
Total Delivery Timeframes:
Standard: 1 day processing + 3-6 days shipping = 4-7 business days
Express: 1 day processing + 2-4 days shipping = 3-5 business days
High Volume Periods: 2-3 days processing + 3-7 days shipping = 5-10 business days
*All timeframes are estimates. Actual delivery times may vary due to weather, holidays, order volume, or courier delays beyond our control.
We currently ship to the United States and all US territories. International shipping also available.
All orders are documented and photographed prior to shipment. Report any issues within 7 days of delivery.
Missing Items: Contact us immediately for verification and resolution.
Damaged Item on Arrival: Contact us within 2 days of delivery with photos of both the package and damaged item (required).
Wrong Items: Contact us immediately for verification and resolution.
All verified issues will be remedied in the form of store credit only. No exceptions.
Stolen Packages: Arcane Peptides is not responsible for stolen packages. For full coverage, purchase shipping insurance.
Lost Packages (Stuck in Transit): Arcane Peptides is not responsible for packages lost by carriers. Contact the carrier directly to locate your package. For full coverage, purchase shipping insurance.
Incorrect Address: Arcane Peptides is not responsible for orders shipped to incorrectly entered addresses. If your order has not yet shipped, contact us immediately. For full coverage, purchase shipping insurance.
Shipping Insurance covers one complimentary reshipment for any incident with photo evidence provided. Resolution is at the discretion of Arcane Peptides customer service.