Collagen is a protein that is essential for the structure, cohesion and youthful appearance of the human body. Found in the skin, bones, muscles, ligaments and joints, it accounts for nearly a third of the body’s total protein. Acting as a kind of ‘biological cement’, it ensures the elasticity and strength of tissues.
From the age of 25, her natural production decreases by around 1% per year. This gradual decline results in a loss of firmness, more visible wrinkles, increased stiffness in the joints, as well as a thinning of hair and of nails.
Marine collagen, thanks to its superior bioavailability, is now establishing itself as a natural solution for supporting the body’s structure and vitality at any age.
Why does collagen production decrease over time?
As we age, the fibroblasts – the cells responsible for collagen synthesis – become less active. This phenomenon becomes more pronounced after the age of 30 and accelerates after 40.
As a result, the dermis loses density, the tissues lose their firmness, and cell regeneration slows down.
The main aggravating factors:
- Excessive exposure to the sun (UV)
- Deficiencies in vitamin C, zinc or amino acids
- Excess of sugar (glycation of collagen)
- Chronic stress, lack of sleep
- Tobacco and air pollution
A healthy and balanced lifestyle helps, but is not always enough. Hence the value of a supplementation with hydrolysed collagen peptides , whose bioavailability and safety have been demonstrated in numerous clinical studies clinical.
From the age of 25: preserving your youth capital
Improve the elasticity and hydration of the skin
Collagen accounts for around 70% of the proteins in the skin: it gives it structure, flexibility and the ability to retain water.
From the age of 25–30, a decline in collagen leads to a loss of elasticity and the appearance of fine lines.
Did you know?
From the age of 30, the skin loses around 1% of its collagen each year. This loss can reach up to 30% during the menopause.
The hydrolysed marine collagen, composed of low molecular weight bioactive peptides (< 2000 Da), is recognised for its high bioavailability and its key role in supplying the essential amino acids required for collagen formation.
Randomised, double-blind clinical trials (Asserin et al., 2015) have shown:
- +23.7% elasticity after 3 months
- +22.8% hydration after 3 months
- –11% reduction in wrinkles around the eyes after 8 weeks
The combination with vitamin C, which contributes to the normal formation of collagen, and together with hyaluronic acid, supports the maintenance of skin firm and hydrated.
The Peptan® marine collagen has been the subject of more than 70 scientific publications documenting its composition, its bioavailability and its tolerability, confirming the quality and safety of use of this ingredient.
From the age of 40: supporting joint mobility and flexibility
Joints are made up of cartilage, a tissue rich in type II collagen. As we age, collagen production naturally declines, which can affect flexibility and mobility.
Vitamin C contributes to the normal formation of collagento ensure the normal function of cartilage.
Clinical studies have shown that supplementation with hydrolysed collagen peptides helps to maintain joint comfort as part of an active lifestyle.
Did you know?
Collagen accounts for approximately 60% of joint cartilage and contributes to its strength and flexibility.
From the age of 45: strengthen hair and nails
Hormonal changes affect keratin production: hair becomes finer and nails more brittle.
Collagen, rich in glycine, proline and hydroxyproline, plays a role in keratin synthesis and contributes to the strength of hair and nails.
According to a study published in the Journal of Dermatology (2017), a 6-month course of collagen supplementation resulted in a significant reduction in nail breakage among the participants.
Did you know?
Hair is made up of nearly 95% keratin. Collagen provides key amino acids that contribute to the structure and vitality of the hair follicle.
Formulas enriched with remineralising plants (horsetail, nettle, Montpellier hairwort) complement the action of collagen and support overall hair health.
After the age of 55: maintaining bone density
After the menopause, the drop in oestrogen accelerates bone loss.
Bones, 90% of whose organic matrix is made up of collagen, become more fragile.
Hydrolysed marine collagencontributes to the structure of bone tissue by providing essential amino acids. Combined with vitamin D, to magnesium and to zinc, which help maintain normal bones, it supports the strength and regeneration of the skeleton.
A randomised study (Nutrients, 2018) showed that supplementation with a specific collagen for 12 months significantly increased bone mineral density in postmenopausal women.
« La santé osseuse dépend autant du calcium que de la qualité du réseau de collagène qui le soutient. » — Dr König, Nutrients Journal, 2018
The choice of marine collagen Peptan®: effectiveness and purity
Marine collagen Peptan® stands out for its purity and traceability.
Derived from natural marine sources, it is rich in type I peptides, which are essential for the skin’s structure and firmness.
Its fine structure ensures optimal bioavailability.
Its key benefits:
- Controlled origin and traceability within Europe
- High solubility and a neutral or subtly flavoured taste
- Efficacy demonstrated by clinical studies on the skin, joints and bones
The art of supplementation: how to maximise the benefits
To get the most out of marine collagen:
- Consume 10 g of hydrolysed collagen peptides per day
- Always combine with vitamin C (collagen formation)
- Drink at least 1.5 litres of water a day
- Follow a regular course of treatment lasting at least 2 to 3 months
- Cut down on sugar and focus on antioxidants
Did you know?
Clinical studies suggest that improvements in skin condition associated with taking marine collagen can be observed after 6 to 8 weeks.
In short: collagen, a key to beauty and vitality at any age
- From the age of 25: helps maintain the skin’s firmness and radiance.
- Around the age of 40: helps maintain joint flexibility and comfort.
- From the age of 50: contributes, along with vitaminC, vitamin D, zinc and magnesiummagnesium, to maintain normal bones and the strength of tissues.
The collagen marine Peptan®, renowned for its purity et sa high bioavailability, forms part of a holistic approach to wellbeing, where beauty, mobility and vitality go hand in hand.
Discover SASHINAH® supplements
Beauty Glow Essence — Peptan® marine collagen + Vitamin C + Hyaluronic acid
→ For firmer, more radiant and hydrated skin.
Synergy — Complex of 5 types of collagen: Peptan® B (bovine), Peptan® F (marine), Colartix® (beef cartilage) and ESM® (egg membrane)
→ To support the structure of tissues, the comfort of the joints and the support of the skin.
Scientific sources
- Clark, K.L. et al., Current Medical Research and Opinion, 2008
- Hexsel, D. et al., Journal of Dermatology, 2017
- König, D. et al., Nutrients, 2018
*Food supplements are not a substitute for a varied and balanced diet or a healthy lifestyle.
The benefits mentioned are based on a number of clinical independent studies. The results may vary depending on the individual.






