The desire for long, thick and healthy-looking hair is universal. Yet it often seems as though hair growth simply stagnates beyond a certain length. No matter how much time and patience you invest, the ends look thin and the dream length you long for remains out of reach. To tackle this problem at its root, we first need to answer two fundamental questions: how fast does hair actually grow? And why do so many people feel that their hair growth stops prematurely?
The truth is that actual growth at the scalp is only half the battle. The real key to long hair lies in length retention – that is, preventing breakage. In this comprehensive guide, we examine the biological facts of hair growth and present you with a strategic step-by-step plan. With the right combination of science, mechanical protection and innovative products like the K18 Hair Mask, Olaplex and the Tangle Teezer, you can optimise your hair growth and minimise hair damage in the long term.
The Biological Reality: How Fast Does Hair Really Grow?
To set realistic expectations for your hair care routine, a look at the biology of hair follicles is essential. Hair growth is influenced by genetic factors, hormonal changes and individual lifestyle.
On average, human scalp hair grows approximately 0.3 to 0.5 millimetres per day. This translates to:
- Roughly 1 to 1.5 centimetres per month.
- Approximately 12 to 15 centimetres per year.
This process follows a continuous cycle consisting of three phases. The growth phase (anagen phase) is the most important, as it determines the maximum length a hair can reach before it falls out. For most people, this phase lasts between three and seven years. If your anagen phase is genetically on the shorter side, your hair reaches a natural maximum length beyond which it cannot grow, as it transitions into the resting phase and falls out beforehand.
However, genetics is usually not the reason why hair seems to stop growing longer. The most common cause of stagnating hair length is a physical problem: breakage.
The Length Illusion: Why Hair Often Seems to Stop Growing
Many people ask: "How fast does hair grow when my ends always stay at the same level?" The answer lies in the ratio between new growth at the roots and the loss of substance at the lengths.
If your hair grows one centimetre per month but simultaneously one centimetre breaks off at the fragile, damaged ends, the overall length remains visually unchanged. This frequently occurs with heavily stressed, dry hair that has been weakened by chemical treatments (such as bleaching or perming), heat styling (blow dryer, flat iron, curling iron) or improper mechanical stress.
To break through the illusion of growth stagnation, you need to strengthen the hair structure from the inside and protect it from friction on the outside. Only when the new hair growing from your scalp also remains healthy along the lengths can you achieve visible progress.
Do your ends break off before your hair gets really long?
Discover our most popular anti-breakage products at clickandcare now – for strong lengths and visible growth, without any compromise.
5 Tips for Long & Healthy Hair: How to Preserve Your Lengths
The following routine aims to nourish your hair optimally at the root and make the lengths resilient enough that breakage becomes a thing of the past.
1. Minimise Mechanical Stress: The Secret of the Tangle Teezer
The greatest enemy of long hair is mechanical friction, especially when the hair is wet. In its wet state, hair is swollen, the cuticle is slightly open and the hydrogen bonds inside are temporarily dissolved. This makes the hair extremely stretchable but also extremely susceptible to tears and breakage.
Using a conventional hard brush or fine-toothed comb at this point literally tears the hair in two. This is where the Tangle Teezer comes in. This specialised hairbrush was designed exactly for this problem. The secret lies in the flexible plastic bristles of varying lengths. When the Tangle Teezer encounters a knot, the bristles give way instead of mercilessly ripping through the hair. Through gentle, layered detangling (always starting at the ends and working upwards), breakage and split ends are drastically reduced. Whether your hair is fine, straight or curly and unruly – gentle detangling is the first and most important step in preserving your hair length.
2. Molecular Repair of Peptide Chains: K18 Hair Mask
When hair is severely damaged by colour, heat or environmental factors, moisture alone is no longer enough. Your hair consists of over 80 per cent keratin, a protein organised in long peptide chains. When these chains break, the hair loses its elasticity and snaps.
This is where the K18 Molecular Repair Hair Mask comes in, based on the innovative K18 Biomimetic Hairscience. The patented K18 peptide active ingredient mimics the natural keratin structure of the hair and is small enough to penetrate deep into the innermost layer (the cortex). There, the Leave-In Molecular Repair Hair Mask reconnects the broken polypeptide chains.
The application is simple but requires a paradigm shift: after washing with shampoo, no conditioner is used! The hair is gently patted dry with a towel and the K18 mask is worked in sparingly. You should then wait exactly four minutes before applying styling products or blow-drying. During these four minutes, the K18 peptide unfolds its molecular action and restores the strength and elasticity of your hair.
3. Strengthen and Protect Disulphide Bonds: Olaplex
While K18 repairs peptide chains, another world-renowned technology focuses on a further critical structural element of hair: the disulphide bonds. These bonds give hair its strength and structure but are destroyed by chemical treatments (such as bleaching) and extreme heat.
Olaplex is the pioneer of so-called bond-building technology. With the patented active ingredient Bis-Aminopropyl Diglycol Dimaleate, Olaplex specifically seeks out broken disulphide bonds in the hair and closes them permanently. For home use, the Olaplex No. 3 Hair Perfector Treatment is particularly crucial, paired with the Bond Maintenance Shampoo (No. 4) and Conditioner (No. 5).
Those who regularly bleach, straighten or expose their hair to strong sunlight benefit enormously from Olaplex hair care. Healthy disulphide bonds mean fewer split ends, allowing your hair to grow undisturbed without having to sacrifice several centimetres of ends at every salon visit.
Is your hair stressed and dull from heat or colour?
Discover our most popular products for intensive hair repair at clickandcare now – for noticeably healthy and elastic hair, without any compromise.
4. Scalp Care: The Foundation for Healthy Hair Growth
A healthy tree only grows in good soil. The same applies to hair growth and scalp care. A scalp clogged with sebum, dead skin cells or residue from styling products (buildup) can impair the function of hair follicles.
Pay attention to maintaining a balanced pH level on your scalp. A mild, deep-cleansing shampoo used every one to two weeks frees the follicles. If you tend to have oily hair, take care not to clog the pores with heavy oils or silicones directly at the roots. A clean, well-circulated scalp (regular, gentle massages promote microcirculation) ensures that nutrients are transported unhindered to the hair root.
5. Nutrient Supply from Within: The Foundation for Healthy Hair
External care is essential for length retention, but the substance from which new hair is formed comes exclusively from within. Since hair is not vital for the body, the organism deprives the hair follicles of their supply first when there is a nutrient deficiency.
For a robust, thick hair structure that is less prone to breakage, your body needs sufficient proteins, iron, zinc, biotin and vitamins. Omega-3 fatty acids in particular play an important role in maintaining a healthy scalp and shiny hair. Ensure a balanced, vitamin-rich diet to provide your body with the building blocks it needs for the best possible hair growth.
K18 vs. Olaplex: Which Is the Better Choice for You?
The question often arises whether you should choose K18 or Olaplex. The expert answer is: both work at different levels of the hair structure.
Olaplex specifically repairs disulphide bonds and is an indispensable lifesaver for heat- and colour-damaged hair. Its home use (No. 3) requires a little more time, as it is applied to damp hair before washing and needs to work for at least 10 minutes.
K18, on the other hand, works on the peptide chains and offers a more comprehensive repair of the entire keratin structure. The great advantage of K18 lies in its speed: as a leave-in mask, it saves you time in the shower (since conditioner is omitted) and requires only 4 minutes of processing time before styling.
Many professionals even recommend alternating use to protect hair against breakage at all structural levels.
Want to take your hair care routine to the next level?
Discover our most popular professional hair care products at clickandcare now – for your personal dream hairstyle in salon quality, without any compromise.
Frequently Asked Questions (FAQ) About Hair Growth
How often can you use K18?
The K18 Leave-in Molecular Repair Hair Mask should be applied as a course treatment at the beginning: during the first 4 to 6 consecutive hair washes. After that, it is sufficient to incorporate the mask every 3 to 4 washes into your routine to keep hair permanently strong and resilient.
Which Tangle Teezer brush is the best?
Choosing the right Tangle Teezer brush depends primarily on your individual hair structure and care needs. For fine or straight hair, the Tangle Teezer Original is particularly suitable, as it detangles gently and smooths hair without pulling. Curly or thick hair benefits from the Tangle Teezer Thick & Curly, as its longer and firmer bristles glide specifically through denser hair. For those often on the go, the Tangle Teezer Compact Styler is ideal – compact, with a protective cover and perfect for your handbag. Specifically for use on wet hair, the Wet Detangler models are recommended, as they protect the delicate hair structure after washing and effectively prevent breakage.
Can hair grow 2 cm per month?
Growth of 2 or even 2.5 cm per month is biologically an absolute exception and occurs almost exclusively due to strong genetic predisposition. Realistically, most people achieve a maximum of about 1.5 cm. Products promising extreme growth cannot exceed the biological limit of the anagen phase by double.
How long does it take for 10 cm of hair to grow back?
Based on average growth (approximately 1 to 1.5 cm per month), it takes about 7 to 10 months for hair to grow 10 centimetres. The prerequisite, however, is that no significant breakage occurs in the lengths during this time.
Be patient with your hair – changes take time, and every small step of progress counts. With consistent, loving care and high-quality products like K18, Olaplex and Tangle Teezer, you achieve lasting results and strengthen your hair structure day by day. Don't be discouraged – celebrate every visible success on your journey to healthy, long hair. Discover all the brands mentioned as well as further salon-exclusive care products now conveniently in the Swiss online shop at clickandcare – and treat your hair to the best, delivered straight to your door!
