Allergy Research 5-HTP 50mg 150s
The amino acid L-5-Hydroxytryptophan (5-HTP) is created from L-Tryptophan in the body, and is a precursor to serotonin and melatonin. This 5-HTP is derived from a plant source, and is carefully tested to ensure its purity and to guarantee the absence of contaminants.
- Ingredients: L-5-Hydroxytryptophan, Microcrystalline Cellulose (E460i), L-Leucine. Capsule Shell: Hydroxypropyl Methylcellulose (E464)
Daily Intake Amount: One capsule
- Directions: As a food supplement, take one capsule daily
- Additional_Warnings: 5-HTP should not be used concurrently with any antidepressant. 5-HTP should be avoided by those with elevated cardiovascular risk, coronary artery disease, carcinoid tumor, stroke or arterial spasm, and by pregnant women and nursing mothers. Large doses of 5-HTP can trigger excess serotonin formation in peripheral tissues, with possible adverse reactions. Use only as directed.
Related Products
Quickview
{"id":15856164602234,"title":"Allergy Research Acetyl-L-Carnitine 100s","handle":"allergy-research-acetyl-l-carnitine-100s","description":"\u003cp\u003eThe acetyl derivative of L-carnitine. Acetyl-L-carnitine is involved in the metabolism of protein, carbohydrates and fats, as well as the conversion of fats into energy. Acetyl-L-carnitine crosses the blood brain barrier more readily than L-carnitine.\u003c\/p\u003e","published_at":"2026-03-17T13:16:10+00:00","created_at":"2026-03-17T13:16:10+00:00","vendor":"Allergy Research","type":"","tags":["Dieting Support","TND"],"price":8157,"price_min":8157,"price_max":8157,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":56700707373434,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"AR-70660-NL","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Allergy Research Acetyl-L-Carnitine 100s","public_title":null,"options":["Default Title"],"price":8157,"weight":0,"compare_at_price":null,"inventory_quantity":14,"inventory_management":"shopify","inventory_policy":"deny","barcode":"713947806603","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/acetyl-l-carnitine-100s_Product_1-34455.png?v=1773753375"],"featured_image":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/acetyl-l-carnitine-100s_Product_1-34455.png?v=1773753375","options":["Title"],"media":[{"alt":"allergy-research-acetyl-l-carnitine-100s","id":70100151828858,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1200,"width":1200,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/acetyl-l-carnitine-100s_Product_1-34455.png?v=1773753375"},"aspect_ratio":1.0,"height":1200,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/acetyl-l-carnitine-100s_Product_1-34455.png?v=1773753375","width":1200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003eThe acetyl derivative of L-carnitine. Acetyl-L-carnitine is involved in the metabolism of protein, carbohydrates and fats, as well as the conversion of fats into energy. Acetyl-L-carnitine crosses the blood brain barrier more readily than L-carnitine.\u003c\/p\u003e"}
You may also like:
Allergy Research Acetyl-L-Carnitine 100s
£81.57
The acetyl derivative of L-carnitine. Acetyl-L-carnitine is involved in the metabolism of protein, carbohydrates and fats, as well as the conversion of fats into energy. Acetyl-L-carnitine crosses the blood brain...
Quickview
{"id":16128921895290,"title":"Allergy Research Adrenal Glandular Adapt 90s","handle":"allergy-research-adrenal-glandular-adapt-90s","description":"\u003cp\u003eAdrenal Glandular Adapt delivers pantothenic acid, adrenal tissue, and standardised adaptogens including clinically-studied Holixer® holy basil to support adrenal resilience during times of physical or emotional strain, energy production, and cortisol regulation.\u003c\/p\u003e","published_at":"2026-06-17T10:00:15+01:00","created_at":"2026-06-17T10:00:14+01:00","vendor":"Allergy Research","type":"","tags":["TND"],"price":5561,"price_min":5561,"price_max":5561,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":56983206166906,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"AR-70481-NL","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Allergy Research Adrenal Glandular Adapt 90s","public_title":null,"options":["Default Title"],"price":5561,"weight":0,"compare_at_price":null,"inventory_quantity":17,"inventory_management":"shopify","inventory_policy":"deny","barcode":"713947804814","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/adrenal-glandular-adapt-90s-37109.png?v=1781686820"],"featured_image":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/adrenal-glandular-adapt-90s-37109.png?v=1781686820","options":["Title"],"media":[{"alt":"allergy-research-adrenal-glandular-adapt-90s","id":70998763012474,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1024,"width":1024,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/adrenal-glandular-adapt-90s-37109.png?v=1781686820"},"aspect_ratio":1.0,"height":1024,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/adrenal-glandular-adapt-90s-37109.png?v=1781686820","width":1024}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003eAdrenal Glandular Adapt delivers pantothenic acid, adrenal tissue, and standardised adaptogens including clinically-studied Holixer® holy basil to support adrenal resilience during times of physical or emotional strain, energy production, and cortisol regulation.\u003c\/p\u003e"}
You may also like:
Allergy Research Adrenal Glandular Adapt 90s
£55.61
Adrenal Glandular Adapt delivers pantothenic acid, adrenal tissue, and standardised adaptogens including clinically-studied Holixer® holy basil to support adrenal resilience during times of physical or emotional strain, energy production, and...
Quickview
{"id":15856168534394,"title":"Allergy Research Aller Aid L92 60s","handle":"allergy-research-aller-aid-l92-60s","description":"\u003cp\u003eContains Lactobacillus acidophilus L-92, which helps balance Th1\/Th2 and other immune cytokines. Enhanced with Vitamin C, Boswellia, and Luteolin.\u003c\/p\u003e","published_at":"2026-03-17T13:17:58+00:00","created_at":"2026-03-17T13:17:57+00:00","vendor":"Allergy Research","type":"","tags":["LHS","MERGED","TND"],"price":6299,"price_min":6299,"price_max":6299,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":56700712157562,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"AR-76910-NL","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Allergy Research Aller Aid L92 60s","public_title":null,"options":["Default Title"],"price":6299,"weight":0,"compare_at_price":null,"inventory_quantity":9,"inventory_management":"shopify","inventory_policy":"deny","barcode":"713947869103","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/aller-aid-l92-60s_Product_1-906.png?v=1773762387"],"featured_image":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/aller-aid-l92-60s_Product_1-906.png?v=1773762387","options":["Title"],"media":[{"alt":"allergy-research-aller-aid-l92-60s","id":70101511537018,"position":1,"preview_image":{"aspect_ratio":1.0,"height":700,"width":700,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/aller-aid-l92-60s_Product_1-906.png?v=1773762387"},"aspect_ratio":1.0,"height":700,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/aller-aid-l92-60s_Product_1-906.png?v=1773762387","width":700}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003eContains Lactobacillus acidophilus L-92, which helps balance Th1\/Th2 and other immune cytokines. Enhanced with Vitamin C, Boswellia, and Luteolin.\u003c\/p\u003e"}
You may also like:
Allergy Research Aller Aid L92 60s
£62.99
Contains Lactobacillus acidophilus L-92, which helps balance Th1/Th2 and other immune cytokines. Enhanced with Vitamin C, Boswellia, and Luteolin.
Quickview
{"id":15856397025658,"title":"Allergy Research Ashwagandha Complex 60s","handle":"allergy-research-ashwagandha-complex-60s","description":"\u003cp\u003eEach capsule provides 525mg of the adaptogenic standardised extracts of ashwagandha, holy basil, and rhodiola, with licorice and ginger. Each of the clinically studied plant extracts supports physical function, a balanced mood, and a healthy response to stress.\u003c\/p\u003e","published_at":"2026-03-17T14:12:09+00:00","created_at":"2026-03-17T14:12:08+00:00","vendor":"Allergy Research","type":"","tags":["TND"],"price":3742,"price_min":3742,"price_max":3742,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":56700847358330,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"AR-77430-NL","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Allergy Research Ashwagandha Complex 60s","public_title":null,"options":["Default Title"],"price":3742,"weight":0,"compare_at_price":null,"inventory_quantity":27,"inventory_management":"shopify","inventory_policy":"deny","barcode":"713947874305","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ashwagandha-complex-60s_Product_1-14266.png?v=1773756736","\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/3828_638996057618841417.jpg?v=1773756736"],"featured_image":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ashwagandha-complex-60s_Product_1-14266.png?v=1773756736","options":["Title"],"media":[{"alt":"allergy-research-ashwagandha-complex-60s","id":70100558479738,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ashwagandha-complex-60s_Product_1-14266.png?v=1773756736"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/ashwagandha-complex-60s_Product_1-14266.png?v=1773756736","width":1000},{"alt":"allergy-research-ashwagandha-complex-60s","id":70100558512506,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/3828_638996057618841417.jpg?v=1773756736"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/3828_638996057618841417.jpg?v=1773756736","width":1000}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003eEach capsule provides 525mg of the adaptogenic standardised extracts of ashwagandha, holy basil, and rhodiola, with licorice and ginger. Each of the clinically studied plant extracts supports physical function, a balanced mood, and a healthy response to stress.\u003c\/p\u003e"}
You may also like:
Allergy Research Ashwagandha Complex 60s
£37.42
Each capsule provides 525mg of the adaptogenic standardised extracts of ashwagandha, holy basil, and rhodiola, with licorice and ginger. Each of the clinically studied plant extracts supports physical function, a...
Quickview
{"id":15856168108410,"title":"Allergy Research B12 Methylcobalamin 50s","handle":"allergy-research-b12-methylcobalamin-50s","description":"\u003cp\u003eThis supplement provides what is referred to as an ‘active’ form of vitamin B12, in the form of methylcobalamin, with folic acid. Regular B12 (cyanocobalamin) must be converted to an active form, such as methylcobalamin, to be used in the body.\u003c\/p\u003e","published_at":"2026-03-17T13:17:44+00:00","created_at":"2026-03-17T13:17:43+00:00","vendor":"Allergy Research","type":"","tags":["TND","Vitamin B12"],"price":2757,"price_min":2757,"price_max":2757,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":56700711534970,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"AR-76560-NL","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Allergy Research B12 Methylcobalamin 50s","public_title":null,"options":["Default Title"],"price":2757,"weight":0,"compare_at_price":null,"inventory_quantity":23,"inventory_management":"shopify","inventory_policy":"deny","barcode":"713947865600","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/b12-methylcobalamin-50s_Product_1-17149.png?v=1773753468"],"featured_image":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/b12-methylcobalamin-50s_Product_1-17149.png?v=1773753468","options":["Title"],"media":[{"alt":"allergy-research-b12-methylcobalamin-50s","id":70100165394810,"position":1,"preview_image":{"aspect_ratio":1.0,"height":700,"width":700,"src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/b12-methylcobalamin-50s_Product_1-17149.png?v=1773753468"},"aspect_ratio":1.0,"height":700,"media_type":"image","src":"\/\/lifestylevitamins.co.uk\/cdn\/shop\/files\/b12-methylcobalamin-50s_Product_1-17149.png?v=1773753468","width":700}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003eThis supplement provides what is referred to as an ‘active’ form of vitamin B12, in the form of methylcobalamin, with folic acid. Regular B12 (cyanocobalamin) must be converted to an active form, such as methylcobalamin, to be used in the body.\u003c\/p\u003e"}
You may also like:
Allergy Research B12 Methylcobalamin 50s
£27.57
This supplement provides what is referred to as an ‘active’ form of vitamin B12, in the form of methylcobalamin, with folic acid. Regular B12 (cyanocobalamin) must be converted to an...