Products Description
Theanine Powder is a naturally occurring amino acid extracted from tea leaves (Camellia sinensis), known for its calming effects. Derived from green and black teas, it promotes relaxation without drowsiness by modulating neurotransmitters like dopamine and serotonin. Joywin Natural's Theanine delivers 99% pure L-Theanine – the bioactive isomer clinically proven to reduce stress, enhance focus, and improve sleep quality without drowsiness. Sourced from premium green tea (Camellia sinensis) and produced via enzymatic fermentation, our pharmaceutical-grade powder offers unparalleled purity and consistency.
As a supplement, it supports cognitive health, reduces stress, and improves sleep quality. Commonly used in nootropics or beverages, it offers a natural way to balance mental well-being by inducing alpha brain waves linked to wakeful relaxation. Safe and mild, it's favored for its adaptogenic properties and minimal side effects.

Specification
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Item |
Specification |
Test Method |
|
Physical&Chemical Control |
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|
Appearance |
Yellowish Brown Fine Powder |
Visual |
|
Odor&Taste |
Characteristic |
Organoleptic |
|
Assay |
Theanine≥20% |
HPLC |
|
Particle size |
95% pass 80 mesh |
80 Mesh Screen |
|
Loss on drying |
≤8.0% |
CP2020 |
|
Residue on Ignition |
≤15.0% |
CP2020 |
|
Heavy Metals |
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|
Heavy Metals |
NMT10ppm |
CP2020 |
|
Lead(Pb) |
NMT3ppm |
CP2020 |
|
Arsenic (As) |
NMT2ppm |
CP2020 |
|
Mercury(Hg) |
NMT0.1ppm |
CP2020 |
|
Cadmium(Cd) |
NMT1ppm |
CP2020 |
|
Microbiology Control |
||
|
Total Plate Count |
NMT3,000cfu/g |
CP2020 |
|
Total Yeast & Mold |
NMT300cfu/g |
CP2020 |
|
E.coli |
Negative |
CP2020 |
|
Salmonella |
Negative |
CP2020 |
|
Staphylococcus |
Negative |
CP2020 |
|
Packaging&Storage |
Packed in paper-drums and two plastic-bags inside,25kg/Drum. |
|
|
Keep in cool & dry place. Stay away from strong light and heat. |
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Shelf Life |
Two years if sealed and stored away from strong sun light and heat. |
|
Clinically Validated Benefits
Stress Reduction: Lowers cortisol by 30% and mitigates physiological stress responses (J Physiol Anthropol. 2007)
Enhanced Focus: Boosts alpha brain waves by 40% for "calm alertness" (Appetite 2008)
Sleep Quality: Improves sleep efficiency without next-day sedation (Nutrients 2019)
Neuroprotection: Shields neurons from glutamate-induced excitotoxicity
Caffeine Synergy: Counteracts jitters while amplifying mental clarity
Industry Applications
|
Sector |
Use Cases |
|
Dietary Supplements |
Stress relief capsules, sleep aids, nootropic stacks, anxiety formulas |
|
Functional Foods |
Calming chocolates, relaxation gummies, stress-reduction bars |
|
Beverages |
Relaxation teas, focus-enhancing coffees, RTD relaxation drinks |
|
Sports Nutrition |
Pre-competition calm formulas, post-workout recovery blends |
|
Pet Supplements |
Anxiety relief chews for dogs/cats |
Packaging&Shipping
● Package: Paper-drums and two plastic-bags inside and Can be customerized.
● Net Weight: 25kgs/bag
● Storage: Stored in dry and cool place, keep away from strong light and heat
● For quantity less than 50KG, DHL Express, FEDEX ,UPS and EMS ,usually called as DDU service (3-5 working day)
● For quantity more than 50kg, you can choose shipping by air (3-7 working day)
● For quantity over 200KG ; you can choose shipping by sea (depend on the destination port)

Certificate
JOYWIN own a number of invention patents and certifications including NOP/JAS, BRC, FSSC, cGMP, Kosher, HALAL, ISO9001, ISO14001, ISO22000, etc.

FAQ
Q: Is this synthetic or natural theanine?
A: Our theanine is produced via natural enzymatic fermentation (non-GMO) – identical to Suntheanine®'s patented process.
Q: Can it be used in caffeinated products?
A: Yes! It's ideal for "calm energy" formulations. Recommended ratio: 2:1 (caffeine:L-theanine).
Q: What's the recommended dosage?
A: 100–400 mg/day. Our R&D team provides formulation support for optimal efficacy.
Q: Is it safe for long-term use?
A: GRAS-affirmed (FDA GRN 1010) with no known side effects at recommended doses.
Q: Do you offer private labeling?
A: Yes – custom blends, potency adjustments (98%-99.9%), and OEM packaging (sachets, jars, drums).
Q:Where & how can I place an order on Theanine Powder?
A:You can click the inquiry or send us an e-mail to contact@joywinworld.com
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