L-Theanine Supplement Manufacturer
Fermentation-derived or synthetic — enantiomeric purity documented, calm-focus and sleep doses verified.
INGREDIENT SPOTLIGHT
L-Theanine Supplement Manufacturing — Calm Focus, Built to Your Formula
We manufacture L-Theanine products on our partner lines in Zhengzhou, China. Bring a finished formula, a target milligram load or a positioning — calm focus, sleep support, or a caffeine pairing — and we turn it into a specification we can run in bulk.
- Fermentation-derived or synthetic L-Theanine to your spec
- Capsule, gummy, powder and drink-mix formats
- L-isomer purity and residual-solvent data documented
L-Theanine is the amino acid behind green tea’s calm-yet-alert effect, and it has become one of the fastest-growing ingredients in the sleep and nootropic categories. The key manufacturing question is source and purity — fermentation gives you the pure L-isomer with a clean label, while synthetic is cheaper but needs residual-solvent scrutiny.
12 Dosage Forms
Gummies, capsules, softgels, tablets, powders, liquids and solid beverages — all run in-house.
6 Production Lines
Two GMP facilities covering 14,000 sqm, 200+ employees, no subcontracted fill.
100+ Export Markets
cGMP, HACCP, ISO 22000 and HALAL certified. Documentation built for your market.
At a Glance
| Item | What We Run |
|---|---|
| Source | Fermentation-derived (preferred) or synthetic L-Theanine |
| L-isomer purity | ≥98% L-Theanine by assay, typical 99%+ |
| Common formats | Hard capsule, gummy, powder, stick pack, drink mix |
| Typical dose | 100–200 mg per serving; 200–400 mg in sleep-positioned formulas |
| Key challenge | Dose accuracy in blends, bitterness masking in gummies |
| Origin | Approved suppliers, fermentation or synthetic grade |
| Documentation | COA, assay, heavy metals, residual solvents, allergen statement |
| Certification | cGMP, HACCP, ISO 22000, HALAL |
Why Source and Purity Decide the Product
L-Theanine is chemically simple but commercially subtle. Three decisions decide whether the calm product lands.
Source
The first decision is fermentation versus synthesis. Fermentation-derived L-Theanine delivers the pure L-isomer without organic-solvent residue, dominating clean-label and premium formulas. Synthetic is cheaper, but a careful buyer checks the residual-solvent certificate and enantiomeric purity.
The Dose Story
A calm-focus capsule runs 100–200 mg; sleep formulas move to 200–400 mg and are often paired with magnesium, GABA or melatonin. The milligram claim must match the assay, and we verify the arithmetic the same way we do for minerals.
Taste
L-Theanine has a mild, slightly savoury note that is easy to mask in capsules but harder in gummies and drink mixes, where a poorly chosen flavour system turns a premium calm product into something consumers reject.
Formats We Run
Hard capsules
HPMC or gelatin, 100–400 mg per capsule, the default for calm-focus and sleep SKUs
Gummies
pectin or gelatin base, 50–100 mg per piece, flavour-masked for a clean finish
Powder and stick packs
1–5 g servings, easy to blend with magnesium, GABA or caffeine
Drink mixes
ready-to-mix sachets for the calm-energy positioning
What We Check Before Release
L-isomer assay and enantiomeric purity a…
L-isomer assay and enantiomeric purity against the claimed milligram dose
Residual solvents where a synthetic sour…
Residual solvents where a synthetic source is specified
Heavy metals and microbiological limits …
Heavy metals and microbiological limits on the finished product
Disintegration and dissolution timing ac…
Disintegration and dissolution timing across capsule and gummy formats
Taste and mouthfeel stability through shelf life for gummies and drink mixes
Sourcing and Specification Notes
Fermentation-derived and synthetic grade…
Fermentation-derived and synthetic grades are both regularly stocked
Fermentation carries a price premium but…
Fermentation carries a price premium but removes the solvent and enantiomer question We document the L-isomer purity so your label claim is defensible
Vegan capsule and gummy options are avai…
Vegan capsule and gummy options are available on request
One Thing Buyers Get Wrong
Assuming ‘theanine’ is one material. Fermentation-derived and synthetic L-Theanine are not interchangeable — they differ in enantiomeric purity, residual solvents and price. Specify which one you are buying. Under-dosing the blend. A 50 mg L-Theanine note inside a proprietary blend is below the studied range and delivers no perceptible effect. The label should carry a real milligram claim. Ignoring taste in gummies. L-Theanine is easy in a capsule but bitter in a gummy without a proper flavour mask. The format decides the masking work.
Popular Formulas We Run
L-theanine is a versatile calm-focus ingredient — the caffeine pairing and sleep stack are the defaults.
Calm Focus
L-theanine 200 mg with 100 mg caffeine — the classic 2:1 focus pairing.
Sleep + Relax
L-theanine with GABA, magnesium or melatonin for an evening formula.
Daytime Stress
L-theanine 100–200 mg as a standalone calm-focus capsule.
MOQ, Sampling & Lead Times
The commercial basics up front — minimums, sampling and production speed, the same commitment on every ingredient line.
Minimum Order Quantities
From 100 pieces per SKU on standard formats; 500 for custom packaging, 1,000 for a custom formula and 3,000 for full turnkey projects.
Quote & Sampling
Enquiries answered within 24 hours and quotations within 48. Samples take 2-3 days, with pilot batches from 1–5 kg before any bulk commitment.
Production & Dispatch
Standard bulk runs complete in 5–10 days, with packaged goods leaving the factory in 10–15 days after PO and artwork approval.
Where to Go Next
Health Focus
Frequently Asked Questions
What is the minimum order quantity for L-Theanine capsules or gummies?
MOQ is confirmed per format and specification at quotation stage. Dose, format, unit weight and packaging all move the figure, so send us the target milligram claim and format for an exact number.
Should I choose fermentation-derived or synthetic L-Theanine?
Fermentation-derived delivers the pure L-isomer with a clean label and is the default for premium formulas. Synthetic is cheaper but requires residual-solvent and enantiomeric-purity checks. Tell us your positioning and price point and we will recommend one.
Can you match a 200 mg per capsule claim exactly?
Yes. Give us the milligram claim and we will show you the fill weight, capsule size and cost behind it, verified against the assay before print.
Can L-Theanine be combined with caffeine, GABA or magnesium?
Yes. We routinely build L-Theanine + caffeine calm-focus stacks and L-Theanine + GABA + magnesium sleep blends. We check the full label arithmetic across every active.
Do you produce L-Theanine gummies?
Yes, with flavour masking built into the formulation so the savoury note does not come through.
How long does bulk production take?
We reply to enquiries within 24 hours and send a quotation within 48. Samples take 2-3 days, and standard bulk runs complete in 5–10 days with packaged goods leaving in 10–15 days.
DOSAGE FORMS
Which format should your L-Theanine product take?
The same active can be delivered in several forms, and each one changes the fill weight, the taste profile and the tooling. We produce tablet, capsule, gummy and powder in-house, so the choice is driven by your market rather than by what a third party can supply.
- Forms we run for this ingredient: capsules, gummies and powders
- Pilot batch from 1–5 kg before any bulk commitment
- Fill weight, unit count and pack format set to your brief
Request a L-Theanine Sample
Send the target actives, dosage form and pack size. We reply with a feasibility view, a sample plan and indicative pricing within 1–2 business days.
Start Your Project
Send the format, target active load and destination market. We confirm feasibility, quote it and prepare a sample — usually within 1–2 business days. Prefer to see the capability first? Read how our OEM programmes run, or request a free quote.