+86 133 1888 8296jackliu@zoomsheal.com
GMP · NSF · ISO 22000 · HACCP certified
OEM / ODM from 3,000 pcs
Welcome to ZOOMSHEAL

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.

4-6 Weeks
Lead Time
3,000 Bottles
Starting MOQ
98%+ Purity
Standardized Extract
L-Theanine Supplement Manufacturer for Focus & Relax Formulas

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

Fermentation & Tea-Extract Purity
We source L-theanine produced by enzymatic fermentation or extracted from green tea, standardized to 98% or higher and verified by HPLC. Each incoming lot is assayed for purity, heavy metals and residual solvents before it enters production.
100 mg to 200 mg Dose Control
Formulas are built around the common 100 mg to 200 mg per-serving range, with overage and excipient choices tuned so your label claim and serving size match the finished product you ship to market.
Capsules, Gummies and Powder Sticks
Hard vegetarian capsules, sugar-free pectin gummies and single-serve powder sticks are all made in-house. L-theanine pairs with caffeine, GABA, magnesium or melatonin under one MOQ and one quality file.
Clean Label and Vegan Options
We formulate without titanium dioxide or artificial colours, using HPMC vegan capsules and pectin gummies. Sugar-free, vegan and halal-ready L-theanine programs use certified raw materials with matching documentation.

L-Theanine Manufacturing Specifications

FormSpecificationMOQLead Time
Hard CapsulesL-theanine 100-200 mg per capsule, 98% purity, 60-120 count3,000 bottles4-6 weeks
TabletsL-theanine 100-200 mg, chewable or swallow, 60-180 count3,000 bottles4-6 weeks
GummiesPectin or gelatin base, 50-100 mg per gummy, sugar-free option20,000 pcs5-7 weeks
Powder SticksL-theanine plus magnesium or GABA, 1-5 g single-serve sachet10,000 sachets4-6 weeks
Bulk PowderL-theanine 98% fermentation or tea extract, 25 kg drum25 kg3-5 weeks

Our L-Theanine Contract Manufacturing Process

01
Consultation & Brief
We review your target dose, purity, dosage form and market, then recommend a formula and format that is feasible and cost-effective for your volume.
02
Formula & Pilot Sample
Our team sets the extract grade, carrier and overage, then produces a pilot batch so you can check appearance, taste and capsule or gummy weight before approval.
03
Quotation & Approval
When the pilot is approved we fix the purity, dose and finished specification, agree MOQ, bottle format and lead time, and issue the formal quotation and proforma invoice.
04
Blending & Dosage Form
L-theanine is blended with caffeine, GABA, magnesium or other actives under controlled humidity, then filled, pressed or moulded on dedicated lines with in-process weight checks.
05
Quality Control & Testing
Every batch is tested for L-theanine content, uniformity, disintegration, heavy metals and microbiology, and released only after the certificate of analysis is approved.
06
Packaging & Export Shipping
Capsules, gummies and sticks are bottled or jarred, induction-sealed, labelled to your artwork and cartoned, and the shipment is documented for air, sea or express delivery.

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.

GMPFDA standardsNSF standardscGMPHACCPISO 22000

L-Theanine Manufacturing FAQ

What is the minimum order quantity for custom L-theanine supplements?+
L-theanine capsules and tablets begin at 3,000 bottles, gummies at 20,000 pieces, powder sticks at 10,000 sachets and bulk powder at 25 kg. A first small-batch trial is negotiable if you are validating a new focus or relaxation SKU.
Can you manufacture L-theanine under my own brand?+
Yes. We are a private label and OEM/ODM manufacturer, so your brand appears on the label, carton and certificate of analysis while we supply the extract, dosage form and packaging. We can produce single-ingredient L-theanine or a stacked relax formula.
How long does L-theanine production take?+
Figure on 4 to 6 weeks from formula and artwork sign-off for capsules, tablets and powder sticks, and 5 to 7 weeks when pectin gummies are involved. Sourcing, blending, filling, release testing and export packing all sit inside that window, and locked repeats run quicker.
How much does custom L-theanine manufacturing cost?+
Unit price is driven by the extract grade, purity, dosage form and pack. Fermentation-derived 98% L-theanine and a premium single-serve sachet cost more than a plain bulk powder, while a straightforward 100 mg capsule at scale is competitively priced. Send the spec and volume and we will return a detailed quote.
Can I combine L-theanine with caffeine or other actives?+
Yes. Many clients blend L-theanine with caffeine, GABA, magnesium or melatonin. We can fix the ratio, keep the actives separate in a two-chamber stick pack, or build a layered tablet so the combination performs as intended.
Do you provide packaging and label design?+
We stock bottles, jars, sachets and cartons and can either create your label artwork or print from supplied files. Dielines, barcodes and compliant supplement wording, including the standard FDA disclaimer, are prepared so your L-theanine product lands retail-ready.
Can you help with shipping and customs documents?+
Exports travel with a commercial invoice, packing list, certificate of analysis, certificate of origin and any health certificates the destination requires. We arrange air, sea or express carriage and can cooperate with your nominated forwarder.
What payment terms do you offer?+
New orders normally open with a 30% deposit and close with the 70% balance settled before dispatch, by T/T or another method we agree. Repeat buyers are welcome to request terms, and prices are quoted in USD unless you specify otherwise.

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.

Related Manufacturing Services

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Fill out our “request a quote” form so we can give you a custom price quote to get started with manufacturing your nutraceutical supplements.

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*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.