L-Theanine

L-Theanine is a unique, non-proteinogenic amino acid naturally found almost exclusively in tea leaves (Camellia sinensis). Its primary function is in the nutraceutical sector, where it is highly valued for its ability to promote relaxation without sedation, reduce stress and anxiety, and enhance focus and attention by modulating alpha brain wave activity. This makes it an essential active ingredient for formulations targeting cognitive support, sleep optimization, and mood enhancement, aligning perfectly with the burgeoning stress and wellness market.

INCI Name

Theanine

CAS No.

3081-61-6

Molecular Formula

C₇H₁₄N₂O₃

Molecular Weight

174.2 g/mol

Appearance

White or off-white crystalline powder

Odor

Odorless or slightly characteristic odor

Solubility

Highly soluble in water, soluble in hot ethanol, insoluble in ether

Applicable pH Range

4.0–8.0

Suggested Applications

Functional beverages, capsules, powders, gummies, mood-support supplements

Struggling with Skin Reactivity Driven by Lifestyle Stress? Unlock Neuro-Calming Hydration with High-Purity L-Theanine

Are your current “soothing” skincare products failing because they only treat the surface symptoms while ignoring the skin-brain axis—the physiological link between chronic stress and inflammatory skin damage? For global procurement directors and senior cosmetic formulators, the next frontier in wellness beauty is not just topical barrier repair, but systemic skin calm. The ultimate solution is our High-Purity L-Theanine. Engineered by Shaanxi Huatai Bio-Fine Chemicals Co., Ltd., this advanced amino acid is now transcending nutraceuticals to revolutionize cosmeceutical formulations. By acting as a potent humectant and cellular conditioner, it bridges the gap between inner wellness and outer radiance, positioning your brand at the absolute vanguard of the “Neuro-Cosmetic” movement.

Data-First: Validated Neuro-Relaxation & Humectant Efficacy

In the premium wellness and sensitive-skin markets, performance claims must be anchored in undeniable biological science. We lead with robust data to guarantee the performance of your formulations:

  • Clinically Proven Alpha-Wave Modulation: EEG studies confirm that L-Theanine facilitates the generation of alpha brain waves, fostering a state of “wakeful relaxation” that correlates with reduced skin reactivity and physiological stress markers.

  • Targeted Neurotransmitter Regulation: Proven ability to modulate GABA levels, providing a foundation for soothing the nervous system, which indirectly alleviates the inflammation-driven redness often associated with cortisol-induced skin stress.

  • Superior Humectant Capacity: As a naturally occurring amino acid, L-Theanine acts as a potent humectant, significantly enhancing the skin’s capacity to bind moisture and reinforcing the Natural Moisturizing Factor (NMF) of the stratum corneum.

  • 99% Minimum Purity: Guaranteed high-purity (L-isomer) ensures consistent, batch-stable performance that meets the stringent quality requirements of international clinical skincare manufacturers.

The Strategic Business Value

For Senior Formulators: Extreme Formulation Compatibility

Simplify your R&D process with a highly functional, stable, and versatile active. L-Theanine is a water-soluble amino acid that integrates flawlessly into the aqueous phase of facial mists, soothing night creams, and barrier-repair serums. It maintains exceptional stability throughout the manufacturing process, provided it is handled correctly in an aqueous environment. Its clear/colorless solution makes it perfect for aesthetic-focused formulations, while its slight umami/sweet profile is easily masked by standard fragrance protocols. It serves as an excellent synergistic partner to Hyaluronic Acid and Niacinamide, allowing you to engineer “Mind-Body” skin recovery systems that hydrate the skin while calming the senses.

For Brand Procurement: The Clean Beauty Top Choice

Modern consumers are aggressively seeking holistic beauty solutions that honor the skin-brain connection. Sourcing our High-Purity L-Theanine provides your brand with a highly lucrative, differentiated marketing narrative: “Neuro-Cosmetic Stress Defense.” It allows your marketing team to confidently claim “Stress-Induced Redness Relief,” “Holistic Skin Vitality,” and Clean Beauty compliance (COSMOS/HALAL). By utilizing an ingredient that is globally recognized for safety and wellness, you instantly elevate your product’s perceived value and capture the surging demand for premium, multi-dimensional skincare.

Standard Technical Specifications

Parameter Specification
Purity ≥ 99% (L-Theanine content)
Recommended Dosage 0.1% – 1.0% (Topical application)
Solubility Highly water-soluble
Stability Excellent stability in solution and powder form
Taste Profile Slightly sweet and umami (savory)
Storage Conditions Store in a cool, dry place; airtight packaging recommended.

Ready-to-Use Solutions: Golden Formula Synergies

Accelerate your product development pipeline with these high-impact, synergistic combinations utilizing our premium active portfolio:

  • The Ultimate Neuro-Calming Night Rescue: Combine L-Theanine + Magnesium PCA. The perfect holistic nighttime recovery formula. L-Theanine addresses the systemic stress triggers for inflammation, while Magnesium PCA calms the skin barrier and provides essential mineral hydration for deep, restorative sleep-repair.

  • The Stress-Defense Hydration Serum: Pair L-Theanine + Hyaluronic Acid + Niacinamide. The definitive “Anti-Stress” daily treatment. L-Theanine prevents reactivity from daily stress, Hyaluronic Acid plumps the surface, and Niacinamide strengthens the barrier, leaving the skin comfortable, resilient, and hydrated.

  • The Revitalizing Mind-Body Mist: Utilize L-Theanine + Rose Hydrosol. Ideal for “on-the-go” relaxation. L-Theanine hydrates and conditions, while the aromatherapeutic notes of Rose work in tandem to provide an immediate calming sensation for the skin and the mind.

Global Quality Certifications & Regulatory Confidence

Our state-of-the-art manufacturing facilities strictly adhere to the highest international quality, purity, and environmental standards, ensuring your final products meet global compliance effortlessly. We proudly hold the following pure certifications:

  • ISO9001

  • ISO22000

  • COSMOS

  • HALAL

  • IQNET

Secure Your Competitive Edge in the Neuro-Cosmetic Market

Do not let your brand fall behind by ignoring the critical link between stress and skin health. Upgrade your active matrix with the industry standard for high-purity L-Theanine and neuro-calming skin hydration.

Ready to revolutionize your stress-defense and barrier formulations?

Take decisive action to optimize your R&D pipeline today. Contact our B2B technical sales experts to access the complete Technical Dossier (TDS, MSDS, COA, and Clinical Efficacy Reports) and immediately request your high-purity, odorless free sample! Ensure your next product launch delivers the profound calming and revitalization your consumers demand.

Natural huatai se spécialise dans les ingrédients avancés pour les soins de la peau fonctionnels, proposant du Glabridin de haute pureté (éclaircissant), du Licochalcone A (anti-acné), du Totarol et du Glycyrrhizinate dipotassique. Nous offrons des concentrations personnalisées (1%–99%) et des solutions OEM complètes. Nos installations de production certifiées ISO 9001/22000 et COSMOS garantissent une qualité premium de qualité cosmétique pour les marques de beauté mondiales.

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