01 / HUMAN RESEARCH
Know what was actually studied.
Study preparation, population, duration and outcomes all matter. General spermidine research should be read separately from product-specific evidence.
Explore the researchDR.SPD / SPERMIDINE INGREDIENT
Spermidine.
Start with
the science.
Spermidine trihydrochloride with a defined ≥98.0% GC purity specification. Explore the material, review batch COAs and start your formulation evaluation.
For nutrition brands, formulators and ingredient buyers.
KNOW THE MATERIAL
One ingredient.
A precise identity.
White crystals. A defined hydrochloride salt. The supplied specification sets GC purity at ≥98.0%; three company COAs report 99.4–99.5% for their identified batches. Review the specification and batch records together.
Compare the parent compound and salt- Featured chemical form
- Trihydrochloride
- Salt CAS reference
- 334-50-9
- Appearance
- White crystals
- Purity specification · GC
- ≥98.0%
Specification limits and batch test results serve different purposes. Confirm the current documents for your supply lot.
MATERIAL & DOCUMENTATION
See the material.
Follow the record.
The supplier TDS describes a water-soluble crystalline ingredient, with sealed, cool and dry storage and a declared 24-month shelf life.
Use the batch COA to confirm the actual lot. General research and company capabilities are presented separately from product specifications.
Sources: Dr.SPD TDS version 01, 22 July 2026, and the company-issued COAs.
READ THE EVIDENCE IN CONTEXT
Research in context.
From methods to outcomes.
02 / TECHNICAL REVIEW
Follow the document trail.
Compare the controlled specification with a batch COA, analytical methods, safety information and stability data.
Explore quality documentsFORMULATION DEVELOPMENT
Choose a format.
Test the fit.
These are development pathways to investigate with the actual material, not prevalidated finished-product claims.
Capsules & tablets
Loading, excipient compatibility, flow and content uniformity.
Powders & blends
Mixing, moisture exposure, taste and packaging selection.
Liquid concepts
Grade-specific solubility, pH, processing and stability.
START A TECHNICAL CONVERSATION
Your formulation.
Your next question.
Share your target market, application and ingredient requirements. Ask for the current documents, sample availability or commercial terms.
SPERMIDINE / FAQ
Questions.
Clear starting points.
What is Dr.SPD?
Dr.SPD is a spermidine ingredient from Shanghai EGT Synbio Group Co., Ltd. The company identifies the featured form as spermidine trihydrochloride. Confirm the exact grade, composition and intended use in the current technical specification. Read more
Is spermidine the same as spermidine trihydrochloride?
Spermidine is the parent compound; spermidine trihydrochloride is its hydrochloride salt. They have different molecular weights. Salt mass, free-base-equivalent content and chromatographic purity should not be treated as interchangeable. Read more
What purity and shelf life are available?
The supplier specification sets purity at ≥98.0% by GC. Three supplied company COAs report 99.4%, 99.5% and 99.5% for identified batches. TDS version 01 (22 July 2026) declares 24 months when sealed, cool, dry and protected from light and moisture. Confirm the current documents and actual lot expiration date. Read more
Does published research prove that this ingredient improves memory?
No. Studies use specific preparations and populations. A 2022 randomized trial of a spermidine-rich wheat-germ supplement did not find a significant benefit on its primary memory outcome. It was not a Dr.SPD trial. Read more
Can it be used in capsules, tablets or liquid products?
These are formulation pathways to evaluate. Loading, compatibility, solubility, taste and finished-product stability need to be tested with the actual ingredient grade and formula. Read more
How do I request documents or a sample?
Use the inquiry builder to prepare a message, then send it using your email app to sales@ygingredients.com. Availability, quantity, fees and delivery timing are confirmed by the team. Read more