The Science Behind Stimulating Hair Growth
- Jenifer Neptune
- Jul 28
- 5 min read
Updated: Jul 28
Hair loss impacts millions of people worldwide, prompting a growing demand for reliable, science-backed hair restoration solutions. Understanding the biological foundations of hair growth is key for anyone seeking to improve scalp health and stimulate new hair development. In this article, we’ll explore the phases of the hair growth cycle, common causes of hair loss, and effective treatments—both clinical and at-home—that support natural regrowth.
How Hair Growth Works: The Basics of Hair Regrowth
Hair growth occurs in cycles, with each hair follicle undergoing phases of growth, rest, and shedding. These phases are:
Anagen phase: The active growth phase lasting 2 to 7 years, during which hair cells rapidly divide and hair grows longer.
Catagen phase: A brief transitional phase lasting about 2 to 3 weeks, where hair growth slows and the follicle begins to shrink.
Telogen phase: The resting phase that lasts approximately 3 months. During this time, the hair remains in the follicle but is no longer growing. Eventually, it prepares to shed as a new cycle begins.
Exogen phase: Considered a sub-phase of telogen, exogen is the shedding phase when the hair strand detaches and falls out, making room for new growth. This phase typically lasts 2 to 5 months, though it can vary based on age, genetics, hormones, and overall health.
Hair follicles are tiny organs located in the skin, responsible for producing hair strands. The health of these follicles is crucial for continuous hair growth. Factors such as genetics, hormones, nutrition, and scalp health influence the duration and quality of each phase.
Key Factors Affecting Hair Growth
Genetics: Determines hair density, texture, and susceptibility to hair loss.
Hormones: Androgens like DHT (dihydrotestosterone) can shrink hair follicles, leading to thinning.
Nutrition: Deficiencies in vitamins and minerals such as iron, vitamin D, and biotin can impair hair growth.
Scalp health: Conditions like dandruff or inflammation can disrupt follicle function.
Understanding these factors helps in choosing the right approach to stimulate hair regrowth effectively.
Exploring Hair Regrowth Treatments and Their Effectiveness
There are numerous treatments available aimed at stimulating hair regrowth. These range from topical solutions and medications to advanced therapies and lifestyle changes. Here are some of the most common and scientifically supported options:
Topical Treatments
Minoxidil: An FDA-approved topical medication that widens blood vessels, increasing blood flow to hair follicles and prolonging the anagen phase.
Natural oils and extracts: Ingredients like rosemary oil and peppermint oil have shown potential in improving scalp circulation and follicle health.
Oral Medications
Finasteride: A prescription drug that blocks the conversion of testosterone to DHT, reducing follicle shrinkage.
Nutritional supplements: Biotin, zinc, and iron supplements can support hair growth if deficiencies are present.
Advanced Therapies
Low-level laser therapy (LLLT): LLLT uses therapeutic red light to activate cellular activity within hair follicles, promoting natural hair regrowth. LLLT is gentle, painless, and free of known side effects—ideal for long-term use. The KeraFactor Scalp Stimulating Laser Cap uses red light (typically 650nm wavelength) to stimulate hair follicles at the cellular level, promoting increased blood flow and energy production (ATP), which encourages hair growth. Results are enhanced when combined with other hair restoration treatments.
Platelet-rich plasma (PRP): Involves injecting concentrated platelets from the patient’s blood into the scalp to promote healing and growth. PRP involves multiple injections into the scalp, which can be uncomfortable or painful for some patients, especially without a topical anesthetic. Outcomes can vary significantly from person to person. Some patients experience improvement, while others may see minimal or no difference, particularly if hair loss is advanced. PRP is generally most effective for androgenic alopecia (hereditary hair loss).
KeraLase hair regrowth therapy: KeraLase is a comfortable and effective alternative to PRP ( non-invasive and needle free). Each in-spa session takes about 30-45 minutes with noticeable hair regrowth within weeks after the first session. KeraLase combines laser microchanneling with KeraFactor serum to stimulate dormant follicles and boost density. Demonstrated success across various hair loss conditions, with proven effectiveness for clients young and old.
Lifestyle and Home Care
Maintaining a balanced diet rich in proteins, vitamins, and minerals.
Avoiding harsh hair treatments and heat styling.
Regular scalp massages to improve blood circulation.
Each treatment has its benefits and limitations, and often a combination approach yields the best results.
Is it really possible to regrow lost hair with KeraLase Treatment?
Many people wonder if lost hair can truly be regrown or if hair loss is permanent. The answer depends on the cause and extent of hair loss.
Temporary vs. Permanent Hair Loss
Temporary hair loss: Conditions like telogen effluvium (stress-related shedding) or nutritional deficiencies often result in reversible hair loss. Once the underlying issue is addressed, hair regrowth is possible.
Permanent hair loss: Androgenetic alopecia (pattern baldness) causes follicle miniaturization, which can be difficult, but not impossible to reverse. KeraLase laser treatment combined with KeraFactor at-home serum and is highly effective at slowing progression and stimulating regrowth.
Factors Influencing Regrowth Potential
Duration of hair loss: The longer follicles remain inactive, the harder it is to revive them.
Age and overall health: While younger individuals in good health may respond more quickly to treatments, at Brighton Aesthetics & Wellness we’ve seen exceptional hair regrowth results with our KeraLase Hair Restoration across clients of all ages.
Early intervention: Starting treatment at the first signs of hair thinning improves outcomes.
Brighton Aesthetics & Wellness clients have experienced significant improvement with the KeraLase treatment and at-home regimen, including KeraFactor's at-home serum, shampoo, and LLLT red light cap.
Practical Tips to Stimulate Hair Growth at Home
Simple lifestyle changes and home care can make a big difference in maintaining your hair re-growth.
Nutrition and Hydration
Eat a diet rich in lean proteins, iron, omega-3 fatty acids, and vitamins A, C, D, and E.
Stay hydrated to maintain scalp moisture and follicle health.
Scalp Care
Use gentle shampoos and conditioners free from sulfates and harsh chemicals.
Regularly massage the scalp for 5-10 minutes daily to boost blood flow.
Avoid tight hairstyles that pull on hair and cause traction alopecia.
Avoiding Damage
Limit heat styling tools and chemical treatments.
Protect hair from excessive sun exposure by wearing hats or using UV protection sprays.
Stress Management
Practice relaxation techniques such as meditation, yoga, or deep breathing.
Chronic stress can disrupt the hair growth cycle and increase shedding.
By incorporating these habits, you create an environment conducive to healthy hair growth.
Effective Hair Regrowth Starts with KeraLase Technology
Stimulating hair growth involves a complex interplay of biological processes and external factors. Among the most promising solutions available today is KeraLase Hair Restoration, a cutting-edge treatment that leverages advanced technology to deliver powerful, visible results. By combining evidence-based science with innovative techniques, KeraLase offers individuals of all ages a highly effective path to restoring healthy, fuller hair. As the field of hair restoration continues to evolve, KeraLase stands out as a clear and accessible choice for those seeking proven regrowth solutions.
📞 Ready to take the first step? Call 810-852-2514 to schedule your consultation OR book online and discover how Keralase can help you reclaim fuller, healthier hair — naturally.
