FAQ
Concierge Answers
Peptide Research FAQ
A concierge-clean guide to the most important product, ordering, and policy questions.
About Research Peptides
What are peptides?
Are these products FDA-approved?
No. All products are sold strictly for laboratory research use only and are not approved by the FDA to diagnose, treat, cure, or prevent any disease or condition. They are not for human or animal consumption.
Product & Storage
Why is my vial not filled to the top?
All products come in 4 mL vials, but the amount of solution inside varies based on the fill quantity. The mg value on the label indicates exactly how much compound is in the vial. Many vials are expected to look less than halfway full — this is normal.
How should I store these compounds?
Peptides should be stored on a refrigerator shelf to maintain their potency.
They should be protected from light and heat, and you should avoid repeated freezing and thawing.
What is the shelf life?
Lyophilized powder remains stable for up to 24 months when stored correctly — 2–8 °C, protected from light and moisture.
How long do peptide vials last once reconstituted??
Once reconstituted, store refrigerated at 2–8 °C and do not freeze. Stability in liquid form is shorter than in powder form, so handle under appropriate laboratory conditions.
Payments, Shipping & Returns
What payment methods do you accept?
We accept credit cards (Visa, MasterCard, American Express), PayPal, Zelle, and Venmo.
Do you accept returns?
All sales are final and we do not accept returns. Because these are research materials, we cannot accept returns once an order has shipped. If your order arrives damaged, contact us at orders@tessellix.com.
Loyalty Program
How much can I earn through the loyalty program?
You can earn up to 15% in credits on a referral's first order, and an ongoing 5% on their repeat orders after you opt in.
Are there any costs or obligations to join?
No. Joining is free — no purchase required and no obligations. Just opt in and have them request access on the store.
How do I refer someone to Tessellix?
Simply let them know about us and have them request access to join the shop. They'll enter your name and email when requesting access, so we can link the referral to you once approved.
Concierge Support
Still have questions?
Our team is available to assist you with any step of this process from 8 AM - 8 PM, every day.
Email Us
orders@tessellix.com
Text Us
(650) 880-2121
