L-Arginine - Time released

  • Fast and slow release in one tablet
  • Nitric oxide (NO) supplement
  • Suitable for athletes
  • Heart & blood vessels
  • 500 mg L-Arginine Alpha-Ketoglutarate per tablet
  • 120 vegetable tablets
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EUR 21.80
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L-Arginine - Sustained plus Immediate Release by Doctor's Best

L-Arginine is a conditionally essential amino acid with various bodily functions. L-Arginine Alpha-Ketoglutarate slow and fast release tablets contain two layers. 500 mg of L-arginine is released immediately per dose of two tablets (1000 mg). As a result, L-arginine values ​​in the blood increase rapidly. The remaining 500 mg is released later, so that higher L-arginine levels in the blood, and thus the effects in the body, last for up to 8 hours. L-Arginine is best known as a bodily precursor to nitric oxide (NO).


  • Precursor of nitric oxide (NO)
  • An essential amino acid in some circumstances
  • Immediate and delayed release, effects last 8 hours
  • Suitable for athletes and other target groups
  • Does not contain gluten or soy; GMO-free
  • Suitable for vegans and vegetarians

Precursor of nitric oxide, creatine and polyamines

Arginine is the precursor to nitric oxide (NO), creatine and polyamines. Arginine is a semi-essential, or conditional, amino acid. Adults can synthesize arginine themselves from other amino acids, such as ornithine, glutamate, glutamine and proline. However, in certain circumstances, arginine becomes essential. Then the biosynthesis is too low to meet the daily requirement. Athletes often opt for L-arginine immediate and delayed release supplement. Increased concentrations of L-arginine set in after 15 minutes after ingestion and last up to 8 hours.

About Doctor's Best

Doctor's Best produces high-quality food supplements based on scientific research into good nutrition. The raw materials for the products are grown, developed and researched worldwide. Doctor's Best works together with nutrition scientists to produce strictly high-quality, highly effective supplements. Only branded raw materials are used and supplements have been thoroughly tested during every step of the production process, from raw material to end product. The manufacturing process is integrally based on the Guidelines for Current Good Manufacturing Practice (cGMP). Doctor's Best was founded in 1990 by a physician with an interest in wholesome nutrition. The company’s product range now includes more than 200 items.

Standardized brand products

In its products Doctor's Best almost exclusively uses proprietary and standardized brand materials of official trademarks that have been extensively researched. The authenticity of these ingredients is guaranteed in all products. Doctor's Best never uses alternatives. This results in a qualitatively superior line of supplements with very high bioavailability.

More Information
Product Name
L-Arginine - Time released
Doctors Best
120 tablets
User Instructions

Take 2 tablets daily without food or as recommended by a healthcare practitioner. Warning: Not intended for persons under the age of 18. Consult your doctor if you are pregnant, nursing, have a medical condition, taking nitrates, warfarin, sildenafil (Viagra), medications for hypertension, diabetes, or other supplements that can lower blood pressure.

Ingredients per Serving

1000 mg of L-arginine (500 mg in immediate release and 500 mg in long-term release of L-arginine alpha-keto-glutarate).

EU Norm
*RDA = Recommended Daily Allowance
Other Ingredients

Microcrystalline cellulose, stearic acid, silicon dioxide, magnesium stearate (vegetable source), croscarmellose sodium, hypromellose (coating).

Vegan, Vegetarian
Storage: see label. Keep out of the reach of children. Consult an expert before use in case of pregnancy, breastfeeding, illness or medication.
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