Phosphatidyl Serine - SerinAid®

  • Phospholipids with SerinAid®
  • Brain & stress
  • Nootropics
  • 100 mg per capsule
  • 120 vegetable capsules
Out of stock
EUR 56.25
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Phosphatidylserine with SerinAid® by Doctor's Best

Doctor's Best Phosphatidylserine SerinAid® contains the brain nutrient phosphatidylserine combined with other phospholipids. Phospholipids are fatty substances important for the construction of cells. Phosphatidylserine is highly abundant in oily fish. People who appreciate the beneficial properties of oily fish often choose a phosphatidylserine supplement. People of age also often choose this supplement.


  • 100 mg of phosphatidylserine per capsule
  • Patented SerinAid®
  • Does not contain gluten; GMO-free


Serine is one of the twenty natural amino acids. The non-essential amino acid is formed in the body from other metabolites, such as the amino acid glycine. This Doctor's Best product contains SerinAid®, a registered, high-quality form of the amino acid, and is produced in accordance with EU directives.


A phospholipid is a fatty substance, or lipid, consisting of a phosphate group, a glycerol group, a nitrogen-containing alcohol group and two long fatty acid tails. Different types of small molecules can be attached to the phosphate group, such as serine or choline. Structurally, phospholipids are lipid-protein complexes where lipids and proteins bind together, for instance to form a membrane around every cell in the body. Much is still unknown about the effect of phospholipids in the body. The metabolism of phospholipids is impressive; however, more research is needed to understand what exactly the role of phospholipids is after ingestion and how they interact with the various processes that make up our complex metabolism.

Phospholipids in lecithin

Phospholipids are common in the body and are therefore very essential. Since the early twentieth century, the beneficial effects of dietary phospholipids have been regularly studied. An important source of phospholipids is lecithin, which is found in egg yolks, soybeans, sunflower seeds and rapeseed. Lecithin is often added to foods as a natural 'emulsifier'. The most common phospholipids in food are phosphatidylcholine, phosphatidylethanolamine, phosphatidylinositol and phosphatidylserine. Phospholipids are also sometimes used in foods as antioxidants.

Dietary sources of phospholipids

All plant and animal foods contain phospholipids. The concentration and composition of food phospholipids vary depending on the food source, for example: animal or vegetable. Phospholipids from cold water fish mainly contain unsaturated omega-3 fatty acids. Phospholipid concentrations can also increase during drying of milk or whey, for example. Animal sources of phospholipids include eggs, milk, meat and fish, seafood and krill oil. Vegetable seeds, grains and wheat starches are also rich sources of phospholipids. Finally, phospholipids are present in certain fruit and vegetable products such as spinach, orange juice and lemon juice.

About Doctor's Best

Doctor's Best was founded by a physician in 1990 because of his interest in the scientific basis of wholesome nutrition. The company produces over 200 high-quality nutritional supplements. All products are made from branded raw materials and are carefully tested during every step of the production process, from raw material to finished product. Production takes place on the strict basis of Current Good Manufacturing Practice Guidelines (cGMP). Doctor's Best works with nutrition scientists worldwide to find new, tested ingredients. This results in high-quality end products, developed according to the latest scientific insights.

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
Phosphatidyl Serine - SerinAid®
Doctors Best
120 capsules
User Instructions

Take 1 capsule 3 times daily with food or as recommended by a healthcare practitioner.

Ingredients per Serving

100 mg of phosphatidylserine (PS, from SerinAid®).

EU Norm
*RDA = Recommended Daily Allowance
Other Ingredients

Microcrystalline cellulose, modified cellulose (vegetarian capsule), silicon dioxide, magnesium stearate (vegetable source).

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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