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L-Proline L-Proline 113,4g
Source Naturals
£ 10.82

L-Proline 113,4g

From 3 units only £ 10.61 /Units.

No gluten No GMO Vegetarian
£ 10.82With VAT
£ 0.19 / serving
We can let you know you when the product will be available again
  • Improves skin firmness and elasticity
  • Facilitates synthesis of collagen fibers
  • Slows down skin aging
  • Supports muscle regeneration
  • Stimulates anabolic processes
  • Increases mobility of joints

Source Naturals L-Proline Powder is a dietary supplement containing L-proline – a basic amino acid taking part in collagen synthesis. The preparation allows to maintain healthy joints, stimulates the processes of joint cartilage and muscle regeneration and also supports maintaining good condition of skin, hair and nails.

The preparation is especially recommended to people who actively train, who need effective support for tendons and joints and also for effective muscle regeneration, not only during intensive trainings, but also in the period of rehabilitation. Moreover, the preparation may constitute add-on therapy aiming at reconstruction of hair bulbs, reduction of hair loss, strengthening of nail plate and also improvement of skin state.

L-proline is a substance that builds proteins, which belong to the group of endogenous amino acids. In physiological conditions it may be produced by the organism from arginine and glutamic acid, however, in the case of excessive strain of the musculoskeletal system, autosomal synthesis of proline may be too low, therefore it is worth taking care about its proper supply. Proline, in the presence of proline hydroxylase and vitamin C, is transformed into hydroxyproline and is an element essential to build new collagen fibers.

This amino acid plays an important role in maintaining proper functioning of connective tissue, improves the appearance of skin, hair and nails and supports muscle regeneration. Moreover, L-proline supports the work of the immune system and strengthens heart muscles as well as improves their resistance to unfavorable external factors.   

Consequences of L-proline shortages in the organism
Proline deficits may contribute to lowering the organism’s efficiency, artery walls structure disorders and primarily it may lead to collagen deficits, which may appear as pain symptoms, lower cartilage resistance to burdens, worse firmness and elasticity of skin, wrinkles, the increase of hair susceptibility to fall out and nail weakening.

Proline and collagen synthesis
L-proline, next to glycine and hydroxyproline is the main amino acid in cartilaginous tissue. L-proline takes part in building collagen, which is a component of extracellular matrix of connective tissue and plays a role of scaffolding – supports skin, bones and cartilaginous elements, thanks to which it is an important component of their proper functioning.

The influence of proline on the state of skin
Collagen provides skin with proper density, firmness and elasticity. Thanks to it, skin is bright, regenerates easier and preserves young appearance for longer. With age, collagen production in the organism drops and as a result of this, visible signs of aging appear (wrinkles, dryness, lack of firmness). It has been observed that the ability of the organism to synthesize collagen is lowered as early as at the age of 26.

Anabolic and anticatabolic proline effect
Among people practicing intensive physical activity, the increased needs for amino acids, including proline, is observed. This amino acid is vital not only because it constitutes the support for muscles, but also because it demonstrates anabolic effect. L-proline influences stimulation of mTOR kinase activation and HGF synthesis (hepatocyte growth factor), which is reflected in the growth of protein production and the frequency of cell divisions, which in turn influences the growth of strength and muscle mass.

Moreover, proline may constitute a defense element of the system against harmful effect of oxidative stress. It has been observed that along with the growth of cortisol, the production of L-proline is increased. As widely known, cortisol contributes to the intensification of the processes leading to fatty tissue storage and also increases catabolic processes of the organism.

Summing up, Source Naturals, L-Proline Powder is a dietary supplement, which constitutes invaluable help in the case of people who are physically active. L-proline, as the main element of collagen helix structure, contributes to the improvement of joint resistance to injuries and the increase of mobility. Moreover, the preparation may support the process of building muscle tissue. The supplement also allows to maintain beautiful, young skin and strong hair and nails and although organism aging is a physiological process and is inevitable, it may easily be slowed down by applying this preparation. 

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Container size: 113,4gServing size: 1 Teaspoon (approx. 2 g)Servings per container: 56
per 1 teaspoon (2 g)amount%DV
L-Proline2 g

Other ingrednients


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Calories are the conventional name of the unit expressing the energy value of food, the demand and energy expenditure in human body, which in fact is 1 kilocalorie (1 kcal). 1 kilocalorie is the amount of thermal energy required to heat 1 g of water and 1 degree Celsius. The SI unit of thermal energy is 1 joule (1J), equal to approximately 4,185 kcal.
The energy value is determined by the chemical composition of the food product, by means of the so-called. physiological equivalents. Most often Atwater equivalent is used: ratio for protein 4 kcal / g, for carbohydrates 4kcal / g, and for fat - 9kcal / g.
The energy value carried out with the so-called. "Caloric bomb" is equivalent to the physical energy, amounting to 4.1 kcal per 1 g carbohydrate to 5.65 kcal per 1 g protein, 9.45 kcal per 1 g of fat.
Nutritional value, determines the suitability of a food product for realizing life functions of human, the higher it is - the higher bioavailability and lower quantity for consumption for obtaining the effects.




Proline - endogenous amino acid, one of the 22 amino acids building proteins. As a result of the conversion (carried out with the participation of vitamin C) in the form of hydroxy-proline, it is the ingredient of collagen ( basic protein of connective tissue). Influences positively the locomotor system especially in people exposed to an overload (e.g. strength and endurance sports athletes) and during rehabilitation after injury or surgery of locomotor system organs. It is naturally occurring in food, or is synthesized in the body from glutamate. In the dietary supplementation it is a component of high-protein nutrients, amino acid products (in the form of proline or hydroxy-proline), and supporting the functioning of the locomotor system that contains collagen available at
Dosage: No standards for use. Dosage as customarily in supplementation

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