L-Theanine Supplements

Explore our range of L-theanine supplements from trusted health and nutrition brands. Available as standalone L-theanine capsules and as part of selected combination formulas, there are options to suit different preferences and everyday routines.

What Is L-Theanine?

L-theanine is an amino acid naturally found in tea leaves, particularly green tea. It has become a popular ingredient in supplements, either on its own or combined with other nutrients and plant extracts.

If you'd like to learn more about L-theanine, including why people take it and what the research says, read our complete guide to L-theanine.

Choosing an L-Theanine Supplement

When comparing L-theanine supplements, there are a few things worth considering.

Amount of L-theanine: Check how much L-theanine is provided per capsule or recommended serving, as this can vary between products.

Standalone or combination formula: Some supplements contain L-theanine as the main ingredient, while others combine it with ingredients such as magnesium, lemon balm or other nutrients.

Capsules or other formats: Consider which format works best with your existing supplement routine and check the recommended directions for the individual product.

You may also see Suntheanine® on some L-theanine supplements. This is a branded form of L-theanine used by a number of supplement manufacturers.

L-Theanine and Caffeine

L-theanine is naturally present in tea, where it occurs alongside caffeine. This combination has also become popular in some supplements aimed at people looking for an alternative to taking caffeine on its own.

If you're choosing a combination product, always check the label so you know whether it contains caffeine and how much is provided per serving.

Adding L-Theanine to Your Routine

How and when L-theanine is taken will depend on the individual supplement and why you've chosen it. Always follow the directions provided with your product rather than assuming every L-theanine supplement should be taken in the same way.

Supplements should complement, rather than replace, a varied and balanced diet. If you're pregnant, breastfeeding, taking medication or unsure whether a supplement is suitable for you, speak to a healthcare professional.

Explore L-theanine supplements online at Evergreen, with convenient nationwide delivery across Ireland.

Evergreen – Good Health, Naturally.