Trevor D.✓ Verified owner
June 23, 2026
ordered plenty of times, always consistent. checkout is quick every time.
Tesa
COA Verified
Every lot of Tesa is released only after third-party HPLC purity (≥ 99 %), mass-spec identity confirmation and LAL endotoxin testing. The full Certificate of Analysis for your lot ships with the vial.
Released · In stock at the U.S. facility
In stockShips today2–5 day U.S. delivery
What research shows
- ≥ 99 % HPLC purity — verified by a third-party lab on every lot
- U.S. synthesis — made & tested in Carlsbad, California
Why Puripep: ≥99% HPLC verified · LAL endotoxin <10 EU/mg · third-party CoA per lot · ships in insulated packaging · 2–5 day U.S. delivery
The science behind it
Tesa is supplied as a lyophilized research peptide. GHRH analog research peptide. Research-grade, third-party tested, shipped fast. For research use only.
Storage & reconstitution
Store the lyophilized vial at −20 °C (long term) or 2–8 °C (short term, up to 30 days). Reconstitute with bacteriostatic water at the working concentration. After reconstitution, store at 2–8 °C and use within 28 days.
Quality & release standards
Each lot is released only after passing: HPLC purity ≥ 99 %, mass-spectrometry identity confirmation, and LAL endotoxin < 10 EU/mg. Certificate of Analysis (CoA) issued per lot. U.S. synthesis (Carlsbad CA).
Research Use Only — Tesa is sold for in-vitro laboratory research and authorised professional use. Not for human or animal consumption. Not a medicinal product, supplement, food additive, or cosmetic. Customers represent they are a qualified researcher, laboratory, or institution.
- ≥ 99 % HPLC purity
- CoA on every vial
- U.S. warehouse · flat $14.99
Available doses 5 mg | 10 mg
Reviews
4.7199 customer reviews
5★155
4★31
3★13
2★0
1★0
Destiny H.✓ Verified owner
June 22, 2026
reorder again, packaging clean. shipping ran a day slower than usual though.
Kelly M.✓ Verified owner
June 21, 2026
out the door fast, seal intact and the label clean.
Sarah D.
June 18, 2026
came through quick, and the box had a cold pack in it.
Kevin K.✓ Verified owner
June 15, 2026
reorder was quick to ship and the vial looked great.
Josh H.✓ Verified owner
June 14, 2026
big fan. vial came sealed up right. only wish the tracking had refreshed a bit quicker
Sandra Lopez✓ Verified owner
June 13, 2026
spotless vial, seal held tight, label matched up.
H✓ Verified owner
June 10, 2026
came sealed with a clean label. shipping took about 4 days, bit slow but fine.
