Aminoacids

£26.79 
NOW® L-Theanine Double Strength 200 mg Veg Capsules deliver 200 mg L-Theanine with 100 mg Inositol per capsule. Vegan-friendly cellulose capsules; free from gluten, dairy, soy and common allergens. Manufactured under GMP quality standards.
Now Foods

L-Theanine, Pure Powder - 28g | NOW Foods

Now Foods
P29266
£23.40 
Food supplement with L-theanine. Pure powder format for flexible use in water or juice. Serving size and composition follow the official label. No unauthorized health claims.
£15.72 
Food supplement with L-theanine. Swanson Ultra Suntheanine® L-Theanine provides a pure, well-defined form of L-theanine in vegetarian capsules. Each capsule delivers a precise amount of Suntheanine®, suitable for controlled and flexible daily supplementation.
Life Extension

L-Lysine - 100 vegetarian capsules | Life Extension

Life Extension
01678
£8.60 
L‑Lysine vegetarian capsules provide 620 mg of L‑Lysine HCl per capsule. Gluten‑free, non‑GMO formulation designed to support healthy nitrogen balance, calcium absorption, connective tissue and stress response. One capsule on an empty stomach once to three times daily helps maintain protein synthesis and lean body mass.
£25.03 
Kirkman® Rose Lysine Immune Complex blends L‑Lysine, vitamins A, C, E, B6 (pyridoxine HCl + P‑5‑P), zinc citrate, and citrus bioflavonoids (hesperidin, rutin) in a hypoallergenic, gluten‑free vegetarian capsule. Ultra‑Tested® for purity. Designed to support robust immune response and antioxidant defence.*
£5.10 
Food supplement with L-lysine. Swanson Premium Free-Form L-Lysine provides L-lysine in free-form capsules for flexible daily use. Suitable for adults as part of a balanced diet.
£6.77 
Food supplement with L-lysine hydrochloride. BioTechUSA L-Lysine offers 2100 mg L-lysine HCl per daily serving in easy-to-take capsules. A pure essential amino acid source designed for convenient daily supplementation.
Now Foods

L-Lysine, 1000mg - 100 tabs | NOW Foods

Now Foods
P5502
£10.52 
Double strength L-Lysine tablets. Each NOW® L-Lysine tablet provides 1000 mg of this essential amino acid, in pharmaceutical grade quality, suitable for daily supplementation.
Now Foods

L-Lysine, 1000mg - 250 tabs | NOW Foods

Now Foods
P32194
£22.81 
Food supplement with L-Lysine in tablet form. Provides 1000 mg L-Lysine per serving. Composition and serving size according to the official label.
Now Foods

L-Lysine, 500mg - 100 vcaps | NOW Foods

Now Foods
P28630
£8.61 
NOW® L-Lysine 500 mg Veg Capsules provide 500 mg of pure L-Lysine (from L-Lysine HCl) per serving. Essential amino acid in a vegan-friendly capsule. Free from gluten, soy, dairy, and common allergens. Suitable for daily use under professional guidance.
Now Foods

L-Lysine, 500mg - 250 tablets | NOW Foods

Now Foods
P27491
£14.55 
NOW® L-Lysine 500 mg Tablets provide 500 mg of the essential amino acid L-Lysine per serving. Presented in vegetarian-friendly tablets, free from common allergens and quality tested in a GMP facility.
Now Foods

L-Lysine, 500mg - 250 vcaps | NOW Foods

Now Foods
P30319
£16.47 
Food supplement with L-Lysine in vegetable capsules. Each capsule provides 500 mg of L-Lysine from L-Lysine hydrochloride. Serving size and composition according to the official label.
£27.83 
Optimized Tryptophan Plus vegetarian capsules deliver 1000 mg of high‑quality L‑Tryptophan per serving (3 capsules), plus 250 mg L‑Lysine and 66 mg niacinamide, with proprietary hops (Perluxan®) and rosemary extracts. Gluten‑free, non‑GMO, vegetarian formula designed to support healthy sleep patterns, balanced mood, stress response and satiety. Take up to...
Life Extension

L-Tryptophan - 90 vegetarian capsules | Life Extension

Life Extension
01722
£28.65 
L‑Tryptophan vegetarian capsules deliver 500 mg of premium-quality L‑tryptophan per capsule. Gluten‑free, non‑GMO vegetarian formula designed to support healthy sleep patterns, balanced mood, natural stress response and satiety. Take one to three capsules daily on an empty stomach, preferably separately from protein or amino acids.
£7.15 
Food supplement with L-tryptophan. Swanson Premium L-Tryptophan provides 500 mg of L-tryptophan per capsule. This single-ingredient amino acid formula is supplied in capsule form for convenient daily use as part of a balanced diet.
Doctor's Best

L-Tryptophan, 500mg - 90 vcaps | Doctor's Best

Doctor's Best
P7082
£23.07 
Food supplement with L-tryptophan. Doctor’s Best L-Tryptophan 500 mg offers a pure and high-quality source of this essential amino acid. Produced via advanced fermentation, this vegetarian formula supports convenient and flexible daily use.
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