How to grow long, strong hair: our complete guide
How to grow long, strong hair: our complete guide
Updated on , validated by our team of René Furterer experts.
Whether straight, wavy, or curly, long hair is often seen as a symbol of healthy, vibrant beauty. But behind those silky, resilient lengths lies a demanding reality: growing your hair while keeping it strong requires consistency, patience, and, most importantly, the right habits.
To achieve long, healthy hair, two key steps are essential. First, stimulate growth and strengthen the fiber, and second, care for your lengths daily to maintain their beauty.
From targeted care products—that boost shine and volume—to preventive care—that reinforces the hair fiber over time—discover how to support your hair day after day with an expert routine.
Promote growth while strengthening the fiber: the right steps for long, strong hair
Growing long hair isn't just a matter of time. For growth to be visible and to last, you first need to understand what drives the hair growth process: the hair life cycle. This cycle alternates between phases of growth, rest, and shedding, and each hair follicle evolves at its own pace. Providing the hair fiber with an environment that is conducive to this cycle is essential to strengthen the hair in the long term.
Hair health always starts at the scalp. To encourage strong, healthy growth, maintaining proper blood micro-circulation is essential. This is what supplies the hair follicles with the essential nutrients they need. Regular scalp massage, done with your fingertips and using active circular movements, not only releases tension but also oxygenates the roots and stimulates growth.
You can also explore our targeted tips on how to support hair regrowth with simple habits and tailored active ingredients.
Keratin: the protein that structures and strengthens hair
The main component of the hair fiber, keratin, makes up more than 90% of the hair's composition. This structuring protein is essential at every stage of the hair's life cycle. It is present from the root to the tips, ensuring strength, elasticity, and resistance to external aggressions.
Among the different forms of keratin, keratin 85 stands out. It is the only type naturally present throughout the entire hair fiber. It plays a key role in the growth process by accelerating hair development while strengthening its internal structure.
When keratin is weakened or damaged, hair becomes duller, brittle, and prone to split ends. To support it, it is recommended to incorporate products rich in keratinizing active ingredients, such as sulfur amino acids (particularly cysteine) or certain plant proteins, into your routine. These active ingredients help rebuild the hair's fiber from within and improve its long-term resilience.
However, be careful not to use too much keratin. Overloading your can can cause it to stiffen and produce the opposite effect of what you were looking for.
Which ingredients should you prioritize to support hair vitality?
Hair growth depends on a healthy scalp, proper micro-circulation, and well-nourished hair fiber. Three active ingredients specifically target these needs:
- Biotin (vitamin B8) supports the natural production of keratin, the primary protein that makes up the hair shaft. It helps strengthen the lengths and improve hair quality over time.
- Caffeine stimulates micro-circulation in the scalp, helping deliver essential nutrients to the bulb, where hair is created.
- Propolis acts as a natural protective barrier. Its purifying and antioxidant properties help preserve keratin and maintain a healthy scalp environment, ensuring regular growth and stronger hair. At René Furterer, propolis K85™ has been shown to reinforce the hair structure from root to tip by doubling keratin production. APropolis is an active ingredient that promotes both hair growth and strength over time.
Adopt a complete routine for longer, stronger hair
To encourage rapid growth while maintaining strong lengths, opt for a complete, targeted routine built around expert formulas that respect the scalp’s natural balance. A growth accelerator shampoo gently cleanses while stimulating the scalp, while a fortifying anti-breakage mask helps strengthen the fiber and prevent breakage.
Regular application of a growth accelerator serum completes the action by acting directly at the root. These treatments boost growth and strengthen the lengths for faster, longer-lasting results on your hair.
To reinforce this routine, a course of dietary supplements can support growth from within by providing your body with the essential nutrients required to maintain healthy hair.
Caring for long hair: a targeted routine to keep it healthy and beautiful
Once hair growth has started, the challenge is to keep your hair healthy. To achieve this, adopt a targeted routine tailored to your hair’s specific needs. Hydration, detangling, drying: every step is important in maintaining the beauty and strength of your hair fibers.
Hydrate your hair without weighing it down: finding the right balance
Over time, hair naturally loses moisture. This lack of hydration weakens the fiber. As a result, the hair becomes rough, dull, and brittle. Regular use of moisturizing products, such as masks, milks, or leave-in mists, helps maintain suppleness while reducing frizz.
However, be careful not to overload your hair with overly rich formulas, especially if you have fine or combination hair.
Detangling, drying, and styling: adopting the right techniques
Always detangle your hair gently, starting at the ends. Use a brush suited to your hair type or a wide-toothed comb, ideally on slightly damp hair, while using a detangling product.
Dryin also requires specific care. Air drying remains the best option. If you use a hair dryer, use a moderate temperature and always maintain a safe distance from your hair to preserve fiber health. Also, remember to protect your hair from the heat by using a thermal protecting product before drying.
Additionally, some everyday habits can weaken your hair without you even realizing it. Tight hairstyles worn repeatedly (high ponytails, tight braids…) put tension on the scalp. This can lead to localized hair loss, also known as traction alopecia.
Preserve the shine and volume of long hair
Natural shine: how to enhance your hair’s natural shine?
The beauty of long hair depends as much on its health as on its ability to reflect light and maintain volume. To preserve your hair’s natural shine, rinse your hair with lukewarm water or finish with a cool rinse to close the cuticles and intensify its shine. You can also enhance the shine by applying gloss treatments or shine sprays formulated with natural active ingredients. These products work by depositing a light, luminous veil on the surface of your hair.
Lacking volume? Tips for visibly thicker hair
Fine or heavy hair can easily lose volume. To restore density and structure, use light texturizing products such as volumizing mousses or sprays. They will add fullness without leaving greasy residue. A well-thought-out haircut with carefully layered ends also facilitates natural movement; as a result, the hair appears fuller and denser.
Finally, when styling, use gentle movements and try drying your hair upside down to maximize volume at the roots. Over time, these steps will make all the difference in achieving a visibly higher hair density.
How to protect long hair from external aggressions?
Long hair is particularly sensitive to external aggressions—such as UV rays, pollution, and repeated friction. These factors increase oxidative stress, weaken the hair fiber, and dull the overall appearance of the hair. The sun can cause severe dryness and gradual loss of shine, while polluting particles accumulate on the scalp, disrupting its balance.
To limit these effects, incorporate protective hair care products into your routine, particularly those enriched with UV filters. Furthermore, wear a hat, cap, or light scarf for additional protection during prolonged exposure.
You should also adapt your hair care routine to the season—nourishing formulas in winter and increased sun protection in summer—to keep your hair strong and shiny all year round.
Trimming to promote growth: myth or reality?
Contrary to popular belief, cutting your hair does not make it grow faster. However, regular maintenance of the ends is essential to keep your lengths healthy. Damaged or split ends weaken the hair fiber and can lead to premature breakage. By removing them, you prevent damage from spreading up the hair shaft, thus preserving the quality and strength of your hair.
Your hair type and your goals influence the frequency of trims. For long, healthy hair, visit the hairdresser every three to four months to refresh the ends without compromising the length. For fragile or damaged hair, more frequent maintenance may be necessary, with haircuts every two months to limit further damage and breakage.
Whether you're growing your hair or maintaining its length, every step counts. Adopt a targeted routine that respects your scalp and hair fiber and give yourself the best chance of achieving long, strong, and shiny hair.
Discover our selection of René Furterer expert products to boost growth, strengthen the fiber, and enhance your long hair’s natural beauty.
FAQ: our answers for long, healthy hair
On average, hair grows one to one and a half centimeters per month—approximately twelve to eighteen centimeters per year. Age, genetics, diet, and scalp condition all impact the growth rate.
If your hair seems to “stop” growing beyond a certain length, frequent breakage at the ends, or an imbalance in the scalp may be responsible. This often gives the impression growth has stalled. To help kick-start growth, adopt a targeted routine that strengthens the fiber and stimulates micro-circulation.
Washing your hair too regularly with unsuitable products can weaken the fiber. However, if you use gentle products suited to your scalp, there is no need to space out your shampoos too much.
Ideally, you should trim your hair every three to four months to remove damaged ends without disrupting growth. This prevents split ends from spreading up the hair shaft and keeps your hair healthy and thick along its entire length.
To stimulate growth, choose dietary supplements rich in biotin (vitamin B8), zinc, sulfur amino acids (cysteine), as well as sodium selenite, vitamin E, borage oil, and blackcurrant extract.
These essential nutrients promote keratin production, protect scalp cells, and support scalp vitality.
When hair loss becomes more pronounced, certain dietary supplements can help slow it down by acting at the root of the problem. Among the recognized active ingredients are:
- Pumpkin seed oil. It is known to support hormonal balance, which is often involved in androgenetic hair loss.
- Horsetail extract is rich in natural silica, which helps strengthen the hair structure.
- Bamboo extract, also rich in silica, supports the strength and elasticity of the hair fiber.
These ingredients work together to slow down hair loss, revitalize the scalp, and strengthen the hair fiber.
Yes. Long hair tends to be more fragile and lacks moisture along the lengths. It is therefore advisable to use a fortifying, gentle shampoo that respects the scalp and protects the hair fibers. Pair it with a detangling or nourishing treatment to maintain softness and shine from root to tip.
