Discover how a single ingredient can revolutionise your daily hair care routine and why keratin has become the cornerstone of an advanced hair care regime
In the world of hair care, keratin is a word that stirs up just as much excitement as retinol does in skincare. Some treat it as the holy grail for damaged hair, whilst others view it with scepticism as yet another ‘miraculous’ promise from the beauty industry. The truth about keratin in cosmetics, however, is far more fascinating than marketing slogans – it is a story of how science has enabled us to understand and support the natural architecture of our hair.
Keratin – the natural strength of our hair
Before keratin found its way into bottles on shop shelves, it had been the unsung hero of our hair for millions of years. This fibrillar (fibre-forming) protein makes up as much as 95% of the structure of each strand – it can be compared to the steel skeleton of a skyscraper. Keratin gives hair strength, elasticity and protection from the outside world. Without it, our hair would be like a house without foundations.
The problem arises when natural keratin begins to break down. Daily styling, high heat from blow-drying, chemical treatments, and even the sun and air pollution – all of these factors cause keratin to be gradually ‘washed out’ of the hair. The strands become porous and brittle, losing their shine and elasticity. It is at this point that keratin in cosmetics becomes our ally – not as a foreign substance, but as a supplement to what the hair has lost.
A hair consists of three layers: the outer cuticle, the middle cortex (which mainly contains keratin), and the inner medulla. It is in the cortex that most of the keratin is found, which gives hair its characteristic mechanical properties.
When your hair needs a keratin boost – signs of damage
Daily activities, styling and environmental factors gradually break down the natural keratin in your hair. You can recognise this by the following signs:
• Frizz and static – this means the hair cuticles are lifted and the structure has become porous
• Brittleness and split ends – a sign that the hair’s internal structure has weakened
• Loss of shine and dullness – the damaged surface does not reflect light evenly
• Difficulty combing – the hair becomes coarse and tangles easily
• Loss of elasticity – the hair breaks rather than stretching
The main causes of keratin degradation
Heat damage: Frequent use of hair dryers, straighteners or curling irons at high temperatures damages the keratin bonds.
Chemical treatments: colouring, bleaching, and perming – all these processes use chemicals that weaken the hair’s protein structure.
Environmental factors: UV rays, air pollution, chlorine in water and sea salt gradually ‘leach’ keratin from the hair.
Types of keratin in hair care products
Hydrolysed keratin is the form most commonly used in cosmetics. During the hydrolysis process, large protein molecules are broken down into smaller fragments, which can more easily penetrate the damaged hair cuticle and fill in the micro-gaps in its structure.
Keratin amino acids are even smaller components – the individual building blocks of keratin. Thanks to their tiny size, they penetrate deep into the hair structure, helping to rebuild it from the ground up.
Formulas that combine different forms of keratin with other active ingredients, such as ceramides, collagen and peptides, have proven to be the most effective. This synergy of ingredients ensures comprehensive regeneration at every level of the hair structure.
How does keratin work in practice?
Understanding how keratin works in cosmetics helps us appreciate its true value. When we apply a keratin-based product to our hair, a precisely orchestrated process begins. Keratin molecules penetrate through the lifted hair cuticles, reaching the interior of the hair. There, they bond with existing protein structures, filling in gaps and strengthening weakened areas.
At the same time, keratin forms a delicate protective layer on the surface of the hair. This is not an artificial ‘shell’, but rather a biomimetic coating that mimics the natural structure of healthy hair. As a result, the hair becomes smoother, more elastic and more resistant to external factors.
When is hair keratin most effective?
Keratin-based hair care products are beneficial for virtually all hair types, but are particularly recommended for:
• Coloured and regularly styled hair – keratin acts as a protective shield, minimising further damage and helping to preserve colour vibrancy
• Fine and delicate hair – specially formulated keratin products can add volume and body without weighing the hair down
• Curly and frizzy hair – keratin smooths the cuticle, reduces frizz and makes styling easier, whilst preserving the natural curl
• Dull, lacklustre hair – filling in gaps on the hair’s surface allows it to reflect light and regain a healthy appearance
• Chemically damaged hair – intensive regeneration helps rebuild the structure following aggressive treatments
• Normal hair – not yet subjected to chemical treatments, does not appear damaged – in this case, keratin-based products act as a preventative measure, protecting the hair structure from future damage – this is the foundation of its long-lasting beauty and health
Keratin in practice – innovative solutions from Pure me
The Pure me brand has developed a unique solution available in every hair mask and conditioner – the 3×3 FibraBond Repair System™. This advanced system works on three levels of the hair: from the very core, through the middle layer, right to the outer surface. This multi-stage repair process ensures comprehensive restoration of the keratin structure, and hydrolysed keratin is at the heart of the entire system.
Thanks to this approach, every Pure Me mask-and-conditioner treatment is an intensive regenerative therapy that not only fills in gaps in the hair’s structure but also strengthens its natural resistance to future damage.
How should you use keratin-based cosmetics?
Consistency is key – this approach to using keratin products delivers the best results. Start with a gentle shampoo, then apply an intensive mask-conditioner every time you wash your hair, leaving it on for at least one minute, and use it as a 10–20-minute mask 1–2 times a week. You’ll see immediate results in the form of easier combing, smoother hair and an improved appearance within the first minute of application. For enhanced results, leave the mask-conditioner on for 10 minutes (or longer if you wish).
Remember that keratin regeneration is a gradual process – with every application, your hair will become stronger, thicker, more nourished and smoother. The Pure me mask-conditioner adapts to you and your lifestyle – use it however you like, whenever you can and whenever you need to.
Keratin not only repairs existing damage, but also builds up your hair’s resilience against future challenges. As a result, your hair becomes stronger, healthier and more beautiful with every application.
Discover our mask-conditioners:
- SMOOTHNESS AND HYDRATION: THE GLASS-LIKE EFFECT IN THE MASK-CONDITIONER
- DEEP HAIR REPAIR IN A MASK AND CONDITIONER
- STRONG STRENGTHENING AND REBALANCING IN THE MASK-CONDITIONER
- TOTAL REGENERATION WITH MAX SHINE EFFECT IN A MASK-CONDITIONER
