Thorne Research Theanine 90 Capsules
Theanine, by Thorne Research, is a dietary supplement designed to promote relaxation and enhance brain function. Each bottle contains 90 capsules, providing a supply that can last up to three months, depending on dosage. The product's key ingredient is L-Theanine, an amino acid naturally found in green tea leaves. Each capsule contains 200 mg of L-Theanine, which is free from artificial additives, GMOs, and major allergens such as gluten, soy, and dairy. Thorne Research's Theanine is encapsulated in a gelatin capsule, making it easy to swallow and digest. It is recommended for intake once or twice daily, or as recommended by a health-care practitioner. Its primary function is to support cognitive health and promote a calm, relaxed state without causing drowsiness or adverse side effects. It can help with stress management and improve the quality of sleep. The production of Theanine adheres to Thorne Research's comprehensive quality control standards, ensuring that each capsule meets strict product potency and purity criteria. Please consult your healthcare provider before starting any supplement regimen. For storage, keep the product in a cool and dry place, away from light and heat sources. It is sealed with a child-proof safety cap for protection. The product is not intended to diagnose, treat, cure, or prevent any disease. Always follow the product’s guidelines listed on the label for safe and proper use.
Theanine, by Thorne Research, is a dietary supplement designed to promote relaxation and enhance brain function. Each bottle contains 90 capsules, providing a supply that can last up to three months, depending on dosage. The product's key ingredient is L-Theanine, an amino acid naturally found in green tea leaves. Each capsule contains 200 mg of L-Theanine, which is free from artificial additives, GMOs, and major allergens such as gluten, soy, and dairy. Thorne Research's Theanine is encapsulated in a gelatin capsule, making it easy to swallow and digest. It is recommended for intake once or twice daily, or as recommended by a health-care practitioner. Its primary function is to support cognitive health and promote a calm, relaxed state without causing drowsiness or adverse side effects. It can help with stress management and improve the quality of sleep. The production of Theanine adheres to Thorne Research's comprehensive quality control standards, ensuring that each capsule meets strict product potency and purity criteria. Please consult your healthcare provider before starting any supplement regimen. For storage, keep the product in a cool and dry place, away from light and heat sources. It is sealed with a child-proof safety cap for protection. The product is not intended to diagnose, treat, cure, or prevent any disease. Always follow the product’s guidelines listed on the label for safe and proper use.
Theanine, by Thorne Research, is a dietary supplement designed to promote relaxation and enhance brain function. Each bottle contains 90 capsules, providing a supply that can last up to three months, depending on dosage. The product's key ingredient is L-Theanine, an amino acid naturally found in green tea leaves. Each capsule contains 200 mg of L-Theanine, which is free from artificial additives, GMOs, and major allergens such as gluten, soy, and dairy. Thorne Research's Theanine is encapsulated in a gelatin capsule, making it easy to swallow and digest. It is recommended for intake once or twice daily, or as recommended by a health-care practitioner. Its primary function is to support cognitive health and promote a calm, relaxed state without causing drowsiness or adverse side effects. It can help with stress management and improve the quality of sleep. The production of Theanine adheres to Thorne Research's comprehensive quality control standards, ensuring that each capsule meets strict product potency and purity criteria. Please consult your healthcare provider before starting any supplement regimen. For storage, keep the product in a cool and dry place, away from light and heat sources. It is sealed with a child-proof safety cap for protection. The product is not intended to diagnose, treat, cure, or prevent any disease. Always follow the product’s guidelines listed on the label for safe and proper use.
Theanine, by Thorne Research, is a dietary supplement designed to promote relaxation and enhance brain function. Each bottle contains 90 capsules, providing a supply that can last up to three months, depending on dosage. The product's key ingredient is L-Theanine, an amino acid naturally found in green tea leaves. Each capsule contains 200 mg of L-Theanine, which is free from artificial additives, GMOs, and major allergens such as gluten, soy, and dairy. Thorne Research's Theanine is encapsulated in a gelatin capsule, making it easy to swallow and digest. It is recommended for intake once or twice daily, or as recommended by a health-care practitioner. Its primary function is to support cognitive health and promote a calm, relaxed state without causing drowsiness or adverse side effects. It can help with stress management and improve the quality of sleep. The production of Theanine adheres to Thorne Research's comprehensive quality control standards, ensuring that each capsule meets strict product potency and purity criteria. Please consult your healthcare provider before starting any supplement regimen. For storage, keep the product in a cool and dry place, away from light and heat sources. It is sealed with a child-proof safety cap for protection. The product is not intended to diagnose, treat, cure, or prevent any disease. Always follow the product’s guidelines listed on the label for safe and proper use.
in 15 offers
The lowest price for Thorne Research Theanine 90 Capsules right now is $94.79 at Nutriessential.com, compared across 12 retailers.
The all-time low was $58.95 on 31 Dec 2025 — today's price is 61% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 26 Aug 2026.
Last updated at 26/08/2026 21:56:08
Thorne Research - Theanine - 90 Capsules
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Theanine - 90 caps
Delivery $34.50
Theanine, 90 Veg Capsules, by Thorne Research
Delivery $12.55
Thorne Theanine
Free delivery
Thorne Research Theanine
Delivery between 2–9 Sept $16.72
Thorne Theanine 90 Caps | Calm Focus & Stress Support
Delivery $19.87
L-Theanine – Thorne | Hewyn
Delivery $6.95
Thorne Research, Theanine, 90 Vegetarian Capsules
Free delivery between 31 Aug – 8 Sept
THORNE - Theanine - 200mg of L-Theanine - Support a Healthy Stress Response, Relaxation,
Delivery $39.36
Thorne Theanine, 90 Capsules, Supporting Brain Health, Improves Sleep Quality
Delivery between 1–4 Sept $20.87
originally posted on influenster.com
L-theanine is amazing for countering the unpleasant effects of caffeine, as well as helping to relax your brain so that you can fall into a deeper sleep. I take L-Theanine a couple of times a week, and since taking it, I've experienced deeper, more restful sleep and I wake up feeling refreshed. This is an awesome supplement if you're a caffeine-drinker or someone who has a hard time winding down, but who doesn't want to mess with meds or risk the side effects of taking melatonin or other sleep-aids. I absolutely recommend Thorne Research's Theanine over any other theanine supplement on the market, as they have the highest quality ingredients in the correct scientist-recommended dosages in all of their supplements.
originally posted on iherb.com
This is a fantastic complement. To function, it must be taken on an empty stomach. I go from being restless, agitated, and depressed to feeling light and pleased in less than 30 minutes. To avoid jitters, drink with tea or coffee. When I don't take this supplement, I notice a significant difference in my ability to manage stress. I suffer from terrible anxiety, however theanine keeps it at bay for the majority of the day!
originally posted on iherb.com
Helps keep anxious feelings at bay, especially when consuming coffee. Was without this for a few nights and really noticed my sleep suffered. Will repurchase. Only downfall is the price.
| Main Purpose | Adrenal Support |
| Ingredients | 1-Deoxynojirimycin (DNJ) |
| Number of Pills | 1 |
| Dosage | 5 mg |
| Flavor | Apple |
Thorne Research - Theanine - 90 Capsules
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Theanine - 90 caps
Delivery $34.50
Theanine, 90 Veg Capsules, by Thorne Research
Delivery $12.55
Thorne Theanine
Free delivery
Thorne Research Theanine
Delivery between 2–9 Sept $16.72
L-theanine is amazing for countering the unpleasant effects of caffeine, as well as helping to relax your brain so that you can fall into a deeper sleep. I take L-Theanine a couple of times a week, and since taking it, I've experienced deeper, more restful sleep and I wake up feeling refreshed. This is an awesome supplement if you're a caffeine-drinker or someone who has a hard time winding down, but who doesn't want to mess with meds or risk the side effects of taking melatonin or other sleep-aids. I absolutely recommend Thorne Research's Theanine over any other theanine supplement on the market, as they have the highest quality ingredients in the correct scientist-recommended dosages in all of their supplements.
This is a fantastic complement. To function, it must be taken on an empty stomach. I go from being restless, agitated, and depressed to feeling light and pleased in less than 30 minutes. To avoid jitters, drink with tea or coffee. When I don't take this supplement, I notice a significant difference in my ability to manage stress. I suffer from terrible anxiety, however theanine keeps it at bay for the majority of the day!
Helps keep anxious feelings at bay, especially when consuming coffee. Was without this for a few nights and really noticed my sleep suffered. Will repurchase. Only downfall is the price.
I've been taking 3 pills/night to help with sleep and brain function. I can't do without it, is so helpful. I went off it after using it for years and really saw the difference. I find the quality very good.
I work in a coffee shop, and taking this a few times a day really make the impact of caffeine better. As many other people say here, there are tons of Theanin sources available, most a lot cheaper than this, but I do believe the quality is superior. This is actually one of there most expensive supplements for a single nutrient, but I wouldn´t miss it.
It’s like a hot bath for your brain.Relax your mind and take it easy. It actually works. Thorne products are high quality and IMO are the best on the market. You just need one, twice a day, and you’ll notice the difference in your overall well-being. I suffer from depression and anxiety. This is something that has helped me.
| Main Purpose | Adrenal Support |
| Ingredients | 1-Deoxynojirimycin (DNJ) |
| Number of Pills | 1 |
| Dosage | 5 mg |
| Flavor | Apple |
