Natural Factors Stress-Relax, Suntheanine, L-Theanine, 60 Vegetarian Capsules (125 mg per Capsule)
— · Item
Prices across 1 retailer
updated dailyCheapest first, using today's offer price where one is running.
Some retailer links are affiliate links — we may earn a commission at no extra cost to you.
Price history
Best price so far: £15.52 at Iherb on 2 Sept 2026
Close to the typical price of £15.52 over the last 90 days — a drop may be worth waiting for. Set an alert and we'll tell you.
About this product
Dietary SupplementMental Calmness & RelaxationSuitable for Vegetarian/VeganPurity & Potency GuaranteedSuntheanine contains pure L-Theanine, a unique amino acid found in green tea that is emerging as the premier natural product that supports mental calmness and relaxation. Suntheanine is produced via a proprietary enzymatic process guaranteeing essentially pure L-Theanine for maximum effectiveness. Natural Factors Amino Acids are the highest quality pharmaceutical grade products available.Isura™: Non-GMO: Documentation Mass Spec: Lab Tested