L-Theanine Supplement Manufacturer for Focus & Relax Formulas
ZOOMSHEAL Health produces L-theanine capsules, gummies, powder sticks and bulk powder for brands, distributors and DTC sellers. From 100 mg to 200 mg per serving and 98% purity from fermentation or green tea extract, we handle sourcing, blending, testing and export packing.

L-Theanine Contract Manufacturing, From Extract to Shelf
L-theanine is the amino acid found almost exclusively in tea leaves, and it has become a staple of focus, relaxation and sleep-support formulas. ZOOMSHEAL Health runs dedicated lines in our GMP-certified Guangzhou facility where we control extract sourcing, blending, capsule filling and packaging so every batch matches your approved specification.
We produce L-theanine capsules at 100 mg, 150 mg and 200 mg per serving, sugar-free pectin gummies, single-serve powder sticks and bulk powder standardized to 98% purity. Clients combine it with caffeine, GABA, magnesium or melatonin, and our team builds both single-ingredient and multi-ingredient relaxation blends for buyers in the US, EU and Middle East.
What Sets Our L-Theanine Production Apart
L-Theanine Manufacturing Specifications
| Form | Specification | MOQ | Lead Time |
|---|---|---|---|
| Hard Capsules | L-theanine 100-200 mg per capsule, 98% purity, 60-120 count | 3,000 bottles | 4-6 weeks |
| Tablets | L-theanine 100-200 mg, chewable or swallow, 60-180 count | 3,000 bottles | 4-6 weeks |
| Gummies | Pectin or gelatin base, 50-100 mg per gummy, sugar-free option | 20,000 pcs | 5-7 weeks |
| Powder Sticks | L-theanine plus magnesium or GABA, 1-5 g single-serve sachet | 10,000 sachets | 4-6 weeks |
| Bulk Powder | L-theanine 98% fermentation or tea extract, 25 kg drum | 25 kg | 3-5 weeks |
Our L-Theanine Contract Manufacturing Process
Quality Control for L-Theanine Purity
Purity is the first thing buyers check on an L-theanine label, so our quality programme focuses on identity, assay and stability. Every incoming lot is verified against its certificate of analysis for 98% purity and origin, and each finished batch is tested for active content, weight uniformity, disintegration, moisture and microbial safety.
The plant is GMP-certified in Guangzhou Huadu and complies with FDA, NSF and cGMP standards, with HACCP controls spanning raw-material intake, blending, filling, coating and packing. Stability work, accelerated and real-time, supports both the shelf life and the purity claim printed on your finished bottle.
L-Theanine Manufacturing FAQ
What is the minimum order quantity for custom L-theanine supplements?+
Can you manufacture L-theanine under my own brand?+
How long does L-theanine production take?+
How much does custom L-theanine manufacturing cost?+
Can I combine L-theanine with caffeine or other actives?+
Do you provide packaging and label design?+
Can you help with shipping and customs documents?+
What payment terms do you offer?+
Ready to Launch Your L-Theanine Brand?
Send us your target dose, purity level and dosage form, and our team will reply with a formulation plan, MOQ and quote within two business days. ZOOMSHEAL Health has made supplement manufacturing simple for brands of every size since 2003.
