Peptides are among the most effective active ingredients in cosmetology and anti-aging supplementation. Thanks to their ability to stimulate collagen synthesis and tissue regeneration, they are becoming the foundation of modern skincare. In this article, we explain how specific peptides available in the SYNTHAGEN offer work and why it is worth incorporating them into an individual strategy for supporting skin firmness and a youthful appearance.
What are peptides and why do they affect the skin?
Peptides are short chains of amino acids with a strong biological effect. Their structure allows them to easily penetrate the skin barrier, enabling them to act directly in the deeper layers of the skin. Many peptides act as a regenerative signal – they activate repair mechanisms such as:
- collagen production,
- elastin
- hyaluronic acid.

As the body ages, the amount of collagen decreases, leading to loss of firmness and the appearance of wrinkles. Peptides can activate fibroblasts, which are responsible for its production. Furthermore, some of them have antioxidant or neuroprotective effects, which supports the overall condition of the skin and tissues.
These properties make peptides a key element of anti-aging treatments – both in the form of supplements and topically applied preparations.
Which peptides best support collagen production?
Not all peptides work the same way – some stand out with a particularly strong influence on collagen synthesis.
Main peptides supporting collagen:
- NL-GHK-CU – a copper peptide with powerful regenerative action
- NL-EPITHALON – supports cellular renewal and slows down aging
- NL-BPC-157 – a potent stimulator of tissue healing and collagen rebuilding
NL-GHK-CU
Known for its exceptional ability to stimulate the production of type I and III collagen. At the same time, it reduces inflammation and supports wound healing, making it a valuable support for mature and demanding skin.
NL-EPITHALON
Acts at the telomere level, slowing aging processes and supporting fibroblast efficiency. As a result, the skin becomes more resilient and resistant to damage.
NL-BPC-157
Primarily known for its applications in tissue regeneration, it also has a documented effect on the rebuilding of collagen and capillaries, which translates into a healthier complexion and skin elasticity.
How do peptides improve skin firmness and structure?
Peptides influence firmness by supporting the intercellular matrix. This action primarily involves the activation of fibroblasts, which produce not only collagen, but also elastin and proteoglycans – key components responsible for skin elasticity. Peptides also increase skin hydration and reduce micro-inflammatory states that accelerate aging.
Did you know?
Clinical studies have shown that regular use of peptides can reduce the visibility of wrinkles by up to 30% within a few weeks. The best results are achieved with systematic supplementation and the use of topical preparations. Combined with an appropriate diet and UV protection, peptides can significantly delay visible signs of aging, improving facial contour and skin tone.
What other peptides are worth knowing and how do they work?
Beyond strictly collagen-related peptides, there are also those supporting regeneration and neuroprotective functions.
Additional peptides with supportive action:
- NL-SELANK – anxiolytic action and stabilization of nervous system functions
- NL-SEMAX – supports cognitive functions and increases resistance to oxidative stress
- NL-CORTAGEN – regenerates the nervous system and improves cellular efficiency
Although these peptides do not act directly on collagen, their effect on the body indirectly influences skin condition – through reduction of oxidative stress, improvement of sleep quality and increased cellular vitality.






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