✅ Food Supplement: L-750 Capsules are a food supplement — not a licensed medicine and not a medicinal product. L-arginine has no authorised EU/UK health claims. All content relating to nitric oxide, skin nutrition and fibroblast activity is provided for educational purposes only. Not intended to diagnose, treat, cure or prevent any disease. Food supplements should be used as part of a varied and balanced diet and a healthy lifestyle.
⚠️ Important Safety Information:Do not use if you have had a heart attack — L-arginine supplementation is contraindicated post-myocardial infarction. Consult your GP before use if you are taking blood pressure medications (L-arginine may lower blood pressure — combined use risks hypotension), medications for erectile dysfunction (PDE5 inhibitors), or if you have herpes simplex (L-arginine may promote viral replication). Not suitable during pregnancy or breastfeeding without medical advice. Not suitable for children.
✨ L-750 Capsules — L-Arginine HCl 750mg | Skin Nutrition | Nitric Oxide Precursor
L-750 capsules UK supply 750mg of pure L-Arginine HCl per capsule — the hydrochloride salt form of L-arginine, the semi-essential amino acid that serves as the body's primary substrate for nitric oxide (NO) production. If you want to buy L-arginine capsules UK, buy L-arginine skin supplement UK or source a pure, filler-free L-arginine HCl 750mg capsule UK with transparent specification and established supplier credentials, this page covers the complete mechanism, the science behind the nitric oxide-skin connection, full ingredient specification and all size options from 60 to 500 capsules.
The skin connection: Nitric oxide (NO) is not just a performance molecule — it is one of the key regulators of skin biology. All skin cells express nitric oxide synthase (NOS), the enzyme that converts L-arginine into NO. In the dermis, NO drives capillary dilation — widening the microvascular network that delivers oxygen, amino acids and growth factors to fibroblasts, the skin cells that produce collagen, elastin and the extracellular matrix. As NO levels naturally decline with age, this dermal delivery system becomes less efficient — a process increasingly associated with skin thinning, reduced elasticity and the development of fine lines and wrinkles. Supporting L-arginine availability through dietary supplementation provides the raw material the body's NOS enzyme needs to maintain its NO production capacity. Educational context only — food supplement, not a medicine.
Supplied by Charge Products — an established UK supplement supplier since 2016 with 149,000+ verified marketplace sales and a 5 Star Food Hygiene Rating. UK-held stock. Same-day dispatch before 3:30pm Mon–Fri.
🔬 How It Works — The L-Arginine → Nitric Oxide → Skin Pathway
Step 1
L-Arginine Intake
L-Arginine HCl 750mg capsule is absorbed in the small intestine into the bloodstream
Step 2
NOS Enzyme Conversion
Nitric oxide synthase (NOS) — present in all skin cells — converts L-arginine + oxygen → Nitric Oxide + L-citrulline
Step 3
Nitric Oxide Released
NO diffuses into surrounding vascular smooth muscle, triggering vasodilation — widening dermal capillaries
Step 4
Dermal Microcirculation
Improved blood flow delivers oxygen, amino acids and growth factors deep into the dermis — fuelling fibroblast activity
Step 5
Fibroblast & Collagen Environment
Nourished fibroblasts maintain their collagen and elastin production — the structural proteins that define skin firmness, elasticity and texture
Educational pathway illustration only. No health claims are made. L-arginine has no authorised EU/UK health claims as a food supplement.
🧬 The Science — Nitric Oxide & Skin Biology
Educational context only. All content below is based on published research — no health claims are made for this product.
💜 Nitric Oxide — The Skin's Vascular Signal
Nitric oxide is produced in the body by the enzyme nitric oxide synthase (NOS), which requires L-arginine as its primary substrate. All major skin cell types — keratinocytes, fibroblasts, melanocytes and endothelial cells — express NOS and are capable of producing NO. In the dermis, NO is the principal signal for vasodilation of dermal capillaries, governing microcirculation to the skin's living cell layers. Without adequate NO, the skin's internal nutrient delivery system becomes restricted.
🧬 Fibroblasts — The Skin's Collagen Factories
Fibroblasts are the dermal cells responsible for synthesising collagen (types I and III), elastin, hyaluronic acid and the broader extracellular matrix (ECM) that gives skin its structural integrity. Fibroblast activity is directly dependent on adequate oxygen and nutrient delivery — which is governed by dermal microcirculation. Research has also shown that fibroblasts themselves produce and respond to NO, and that NO participates in the regulation of collagen synthesis and fibroblast proliferation via the ERK1/2 and PI3K/Akt signalling pathways.
⏳ NO Decline With Age
Nitric oxide production declines significantly with age. By age 40, research suggests that NO production may be approximately half of the levels seen in the teens and twenties. This decline is associated with reduced NOS enzyme activity, decreased L-arginine availability and increased oxidative inactivation of NO by reactive oxygen species. The consequence for skin is progressive reduction in dermal microcirculation efficiency — contributing to the gradual deterioration of the skin's nutrient supply, collagen environment and barrier function that characterises skin ageing.
🛡️ L-Arginine as Antioxidant Amino Acid
Beyond its role as a NO precursor, L-arginine has demonstrated antioxidant properties in research settings. Studies have shown that L-arginine supplementation upregulates the Nrf2 pathway — a key cellular defence mechanism against oxidative stress — and supports glutathione production, the body's primary endogenous antioxidant. Free radical damage from UV exposure, pollution and environmental stressors is a significant driver of oxidative skin ageing. An amino acid that supports both NO production and antioxidant pathways is a compelling addition to a skin nutrition protocol. Educational context only.
💧 L-Arginine, Hydration & Skin Barrier
L-arginine participates in protein synthesis processes that support the skin's natural moisturising factor (NMF) — the collection of amino acids, pyrrolidone carboxylic acid and other water-binding compounds in the stratum corneum that maintain skin hydration. As a humectant-supporting amino acid, L-arginine helps maintain the skin's ability to attract and retain moisture. Better-hydrated skin appears more plump and smooth, and is more resilient to the environmental stressors that accelerate the visible signs of ageing.
🔧 L-Arginine HCl — The Stable Supplement Form
L-Arginine HCl (hydrochloride) is the most widely used form of L-arginine in food supplements and clinical research. The HCl salt improves stability and solubility compared to free-form L-arginine. It is the form used in the majority of published L-arginine supplementation studies. Each L-750 capsule supplies 750mg of L-Arginine HCl — a meaningful per-capsule dose in a clean, filler-free vegan HPMC capsule.
🧪 Ingredient Specification
| Specification | Detail |
|---|---|
| Product Name | L-750 Capsules |
| Active Ingredient | L-Arginine Hydrochloride (HCl) |
| Amount Per Capsule | 750mg L-Arginine HCl |
| Role | Nitric oxide precursor amino acid — skin nutrition supplement |
| Capsule Shell | HPMC (Hydroxypropyl Methylcellulose) — vegan |
| Fillers / Additives | None — pure L-Arginine HCl only |
| Suitable For | Vegetarians · Vegans · Adults |
| Available Sizes | x60 · x120 · x200 · x300 · x500 capsules |
| Classification | Food supplement — not a medicine |
| Dispatch | 🇬🇧 UK Stock — Same-day before 3:30pm Mon–Fri |
📦 Pack Size Guide
| Size | Supply (at 2 caps/day) | Best For |
|---|---|---|
| x60 | 1 month | Trial / starter |
| x120 | 2 months | Regular personal use |
| x200 | 3 months | Extended use / value |
| x300 | 5 months | Bulk personal / household |
| x500 | 8 months | Best value · wholesale / trade |
💊 How to Take
Suggested use: Take 1–2 capsules daily with water. Can be taken with or without food.
Timing: Many users prefer taking L-arginine before meals or in the morning. L-arginine absorption may be reduced when taken alongside high-protein meals due to competition with other amino acids for transport — a small gap between the capsule and a protein-rich meal can support better uptake.
Stacking: L-arginine is frequently combined with vitamin C (which supports collagen formation — an authorised EU/UK health claim) and zinc (which contributes to normal protein synthesis — an authorised EU/UK health claim). Both are available separately from Charge Products.
Storage: Store below 25°C away from direct sunlight and moisture. Keep out of reach of children.
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🛒 Where to Buy L-750 Capsules UK
You can buy L-750 capsules UK, buy L-arginine HCl 750mg capsules UK and buy L-arginine skin supplement UK direct from Charge Products on this page. All five sizes (x60 to x500) available here. Free UK delivery on orders over £10.
L-Arginine Wholesale UK · Bulk L-Arginine · Trade Supply
L-Arginine HCl 750mg · Vegan Capsule · No Fillers · x60 to x500
bulk L-arginine capsules UK · L-arginine wholesale UK · L-arginine HCl supplier UK · L-arginine bulk supply UK · L-arginine trade supply UK · L-arginine capsules bulk UK · amino acid supplement wholesale UK · skin nutrition supplement wholesale UK — supplying health retailers, aesthetic practitioners, gyms, supplement resellers and trade buyers. Established UK supplement supplier since 2016. 149,000+ verified sales. 5 Star Food Hygiene Rating.
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❓ Frequently Asked Questions — L-750 Capsules UK
What is L-750?
L-750 is Charge Products' name for pure L-Arginine HCl 750mg capsules — the 750 refers to the milligrams of L-arginine hydrochloride per capsule. A nitric oxide precursor amino acid supplement for skin nutrition. Food supplement — not a medicine.
What does L-arginine do for skin?
L-arginine is the primary substrate for nitric oxide synthase (NOS) — the enzyme that produces nitric oxide in skin cells. NO drives vasodilation of dermal capillaries, improving microcirculation and the delivery of oxygen and nutrients to fibroblasts. Research has also shown that NO participates in fibroblast collagen synthesis regulation and that L-arginine stimulates fibroblast proliferation via ERK1/2 and PI3K/Akt pathways. Educational context only.
What is nitric oxide and why does it matter for skin?
Nitric oxide (NO) is a signalling molecule produced by nitric oxide synthase from L-arginine. In the skin, NO regulates dermal microcirculation — the capillary blood flow that delivers nutrients and oxygen to skin cells. All major skin cell types express NOS and produce NO. NO production declines with age, with some research suggesting levels at age 40 may be roughly half those seen at age 20. Educational context only.
What are the ingredients?
Active: L-Arginine Hydrochloride (HCl) — 750mg per capsule. Capsule shell: HPMC (vegan). No fillers, no bulking agents — pure amino acid only.
Are the capsules vegan?
Yes — vegan HPMC capsule shell. No gelatine. No animal-derived ingredients. Suitable for vegetarians and vegans.
Who should NOT take L-arginine?
Do not use if you have had a heart attack — L-arginine is contraindicated post-MI. Consult your GP before use if you take blood pressure medications, PDE5 inhibitors, or if you have herpes simplex. Not suitable during pregnancy or breastfeeding without medical advice.
What is L-Arginine HCl vs L-Arginine?
L-Arginine HCl is the hydrochloride salt form — more stable and soluble than free-form L-arginine. It is the standard form used in the majority of clinical research and supplement manufacturing. The HCl component adds a small amount of weight, so the active L-arginine content per 750mg HCl is approximately 630–640mg.
What goes well with L-arginine for skin nutrition?
Popular skin nutrition stacks with L-arginine include: Vitamin C (authorised UK claim: contributes to normal collagen formation), Zinc (authorised UK claim: contributes to normal protein synthesis), and Collagen peptides. All available separately from Charge Products.
How many capsules should I take?
Use as directed on the product label. 2 capsules per day (1,500mg L-Arginine HCl) is a common starting point. Do not exceed the stated recommended dose. Consult a healthcare professional if you are taking any medication.
Is L-750 available wholesale?
Yes — all 5 sizes available for wholesale including the x500 format. Suitable for health retailers, aesthetic practitioners, gyms and supplement resellers. UK-held stock with same-day dispatch. Contact via the wholesale enquiry page.
🚚 UK Delivery, Storage & Product Information
🚚 Dispatch & Delivery
| Dispatch days | Monday to Friday |
| Same-day cutoff | Before 3:30pm UK time |
| Stock location | 🇬🇧 UK only |
| Free delivery | Orders over £10 |
📦 Storage Instructions
| Temperature | Store below 25°C |
| Light | Away from direct sunlight |
| Moisture | Keep dry — reseal after use |
| Children | Keep out of reach |
🏷️ Product Identification
| GTIN-13 / EAN | 5061123520269 |
| GS1 Prefix | 506112352 — Charge Products |
| Format | Capsule — food supplement |
| Active per cap | 750mg L-Arginine HCl |
⭐ Supplier Credentials
| Food Hygiene | 5 Star — UK local authority |
| Trading history | 10+ years verified UK |
| Verified sales | 149,000+ marketplace sales |
| GS1 membership | Verified UK GS1 Medium tier |
📚 Peer-Reviewed Research References — Educational Context Only
The following peer-reviewed references are provided for educational and transparency purposes only. They do not constitute health claims for this product. L-arginine has no authorised EU/UK health claims as a food supplement.
- Fujiwara T, Kanazawa S, Ichibori R, et al.L-Arginine stimulates fibroblast proliferation through the GPRC6A-ERK1/2 and PI3K/Akt pathway. PLOS ONE, 2014; 9(3): e92168. Demonstrated that L-arginine directly stimulates dermal fibroblast proliferation via specific signalling pathways — the cells responsible for collagen and elastin production in the dermis. PMC: 3961283 ↗
- Ishibashi M, Hiasa K, Zhao Q, et al.Exogenous nitric oxide enhances the synthesis of type I collagen and heat shock protein 47 by normal human dermal fibroblasts. Journal of Dermatological Science, 2005. Study using normal human dermal fibroblasts showed NO significantly accelerated type I collagen production, corresponding with upregulation of procollagen mRNA — confirming the NO → collagen synthesis connection in human skin cells. PubMed: 16171977 ↗
- Schäffer MR, Efron PA, Thornton FJ, et al.Nitric oxide, an autocrine regulator of wound fibroblast synthetic function. Journal of Immunology, 1997; 158(5): 2375–2381. Established that fibroblasts produce and respond to NO, and that inhibiting NO synthesis significantly decreased fibroblast collagen synthesis — demonstrating the essential role of the L-arginine/NOS/NO pathway in the collagen production environment of the dermis. PubMed: 9036987 ↗
- Frank S, Kämpfer H, Wetzler C, Pfeilschifter J.Nitric oxide drives skin repair: novel functions of an established mediator. Kidney International, 2002; 61(3): 882–888. Broad review of NO's role in skin repair and regeneration — establishing nitric oxide as a key mediator of fibroblast activity, angiogenesis, antimicrobial defence and tissue remodelling in the skin. PubMed: 11849436 ↗
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Disclaimer: L-750 Capsules are a food supplement containing L-Arginine Hydrochloride — not a licensed medicine and not a medicinal product. L-arginine has no authorised EU/UK health claims. Not intended to diagnose, treat, cure or prevent any disease or medical condition. All content relating to nitric oxide, skin biology, fibroblast activity, collagen synthesis and skin ageing is provided for educational and transparency purposes only and is based on published academic research. Do not use if you have had a myocardial infarction (heart attack) — L-arginine supplementation is contraindicated post-MI. Consult your GP or pharmacist before use if you are taking blood pressure medications, medications for erectile dysfunction (PDE5 inhibitors), or if you have a history of herpes simplex. Not suitable during pregnancy or breastfeeding without medical advice. Not suitable for children. Keep out of reach of children. Store below 25°C away from direct sunlight and moisture.
| Amount |
x60, x120, x200, x300, x500 |
|---|
