Key Takeaways

• Trybello Hair Helper Spray delivers biotin, caffeine, and castor oil in a lightweight botanical spray designed to nourish follicles and minimize daily shedding, starting at $39.97 per bottle.
• Philip Kingsley Density Stimulating Scalp Toner is a trichologist-developed toner that uses a botanical blend with piroctone olamine and menthol to invigorate the scalp and manage excess oil, priced at $32 for 150ml.
  
• Kérastase Genesis Sérum Fortifiant Hair Serum is a salon-grade, silicone-free scalp serum formulated with Aminexil, ginger root, and caffeine to fortify weakened strands and reduce breakage, retailing at $62 for 90ml.
• Trybello Hair Helper Spray is the only option in this comparison to offer a 120-Day Growth Guarantee, giving you a full 4 months to evaluate results risk-free.

Understanding Each Hair Growth Serum

Philip Kingsley Density Stimulating Scalp Toner focuses on balancing oil production and creating a healthy scalp environment at the surface level.

Kérastase Genesis Sérum Fortifiant concentrates on reinforcing weakened fibers so they resist snapping during daily brushing and styling.

Our Trybello Hair Helper Spray channels botanical actives directly to the follicle to support the root environment where each strand's journey begins.

Below, we break down all three products so you can match the right formula to your specific hair goals.

“Doctor-Approved Natural Spray Rapidly Boosts Growth & Thickness.
Why 100,000+ Women Are Switching to Trybello!"

Join over 100,000 happy customers who've transformed their hair with our doctor-formulated spray in just 12 weeks, rated 4.8/5 by 40,000+ real users.

Proven Natural Ingredients

• • Caffeine Extract – Blocks DHT and boosts blood flow to follicles
• • Biotin – Direct scalp absorption, no pills needed
• • Castor Oil – Soothes inflammation and locks in moisture
• • Rice Water Extract – Strengthens hair and reduces shedding

120-Day Growth Guarantee: No results? 100% money back, no questions asked.

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Trybello Hair Helper Spray

Trybello Hair Helper Spray is a 100% botanical leave-in formula designed for direct scalp application and follicle-level nourishment.

We created our Trybello Hair Helper Spray to deliver natural extracts and nourishing actives directly to the hair follicle. Our new and improved formula is applied in just 1–2 pumps onto the scalp and massaged in.

One bottle lasts approximately 1–2 months, depending on usage frequency. The spray is designed to work with every hair type and texture, absorbing cleanly without leaving hair greasy, oily, or tangled, even on low-porosity strands. We are a US-based company proudly headquartered in Miami, FL, and every bottle is made with 100% botanical ingredients.

Key Ingredients

We created the Trybello Hair Helper Spray around powerful ingredients. Biotin (Vitamin B7) plays a direct role in the production of keratin, the protein that makes up the structural core of each hair strand. Topical application delivers biotin directly to the follicle, bypassing the digestive system, where oral supplements can be filtered out before reaching the scalp.

Caffeine, known for its stimulating properties, helps invigorate the scalp and promote a well-nourished follicle environment for stronger, healthier hair over time.

We also include castor oil to soothe and hydrate the scalp, especially for those dealing with inflammation that can restrict the environment follicles need to function properly.

Ginger root extract contributes antimicrobial properties that help maintain a clean, balanced scalp. Two additional traditional botanicals, Sophora flavescens extract and Angelica polymorpha sinensis root extract, complete the formula, along with argan oil for moisture.

Timeline to Results

Our Trybello Hair Helper Spray is designed to show a clear progression with consistent daily use. By week 2, users typically notice improved hydration and shine. Around week 4, reduced shedding is the most commonly reported change.

By week 8, new baby strands begin appearing, particularly around the hairline and crown. Fuller, denser hair continues developing through week 12, with the most dramatic improvements in thickness and length visible by week 16.

Price

Our Trybello Hair Helper Spray is available at $39.97 per bottle (50ml), with multi-bottle bundle discounts offered for those committing to a longer-term routine.

Philip Kingsley Density Stimulating Scalp Toner

Philip Kingsley Density Stimulating Scalp Toner is a trichologist-developed formula designed to balance the scalp and manage excess oil. (Image source: Philip Kingsley)

Developed by the trichology experts at the Philip Kingsley clinic, this scalp toner is part of the brand's Density range, designed for those with fine, thinning, or fragile hair. The product is dispensed directly onto the scalp via a nozzle after washing and towel-drying, and it does not require rinsing.

Key Ingredients

The toner contains a synergistic botanical blend of soybean germ extract, wheat germ extract, and Scutellaria baicalensis root extract, which work together to support the scalp environment.

Piroctone olamine provides antimicrobial activity to control bacteria linked to dandruff, while menthol and menthyl lactate deliver a cooling, stimulating effect.

The amino acid arginine and amla (Phyllanthus emblica) fruit extract round out the formula. The product is paraben-free, sulfate-free, silicone-free, vegan, and fragrance-free.

Timeline to Results

Philip Kingsley notes that users can expect improvements in scalp condition within 2–4 weeks, but results related to hair growth may take up to 3 months with consistent daily use.

Price

Philip Kingsley Density Stimulating Scalp Toner retails at $32 for 150ml on the brand's website.

Kérastase Genesis Sérum Fortifiant Hair Serum

Kérastase Genesis Sérum Fortifiant is a professional-grade scalp serum enriched with Aminexil and ginger root to fortify weakened strands. (Image source: Kérastase)

Part of the Kérastase Genesis collection, this serum was developed by L'Oréal's research division to address hair fall caused by brushing. The silicone-free formula has a jelly-like texture and is applied via pipette to a dry or towel-dried scalp.

Kérastase positions it as part of a broader routine, recommending it alongside the Genesis shampoo, conditioner, and hair mask to maximize results. This serum is formulated to strengthen weakened hair and reduce breakage.

Key Ingredients

At the center of the formula is Aminexil (diaminopyrimidine oxide), a molecule that aims to prevent collagen hardening around the hair follicle.

Caffeine supports scalp microcirculation, while ginger root extract provides a protective botanical layer. The amino acid arginine bonds to weakened areas of the hair fiber, and niacinamide (vitamin B3) contributes to overall scalp nourishment.

The brand also highlights edelweiss native cells as part of its fortifying complex. The product is silicone-free but does contain fragrance.

Timeline to Results

Kérastase reports that when the full Genesis system (shampoo, conditioner, and serum) is used together, users may experience up to 97% less hair fall due to brushing-induced breakage. The brand recommends daily application for at least 6 weeks for visible results.

Price

Kérastase Genesis Sérum Fortifiant retails at $62 for a 90ml bottle.

Philip Kingsley vs Kerastase vs Trybello Hair Growth Serum: Comparison Table

What Real Users Are Reporting Across All Three Products

Trybello Reviews

Several users dealing with shedding and thinning report that our spray helped where other products had not. One recurring observation is improved scalp comfort. Multiple reviewers report that itchiness and dryness improved within a few weeks of starting the spray.

Others note that their ponytail feels noticeably heavier and that breakage on pillows and clothing has reduced. Post-chemotherapy users have also shared that our Trybello Hair Helper Spray supported their regrowth journey during a particularly vulnerable time.

Our Trybello users frequently share stories of reduced shedding and visible new growth within weeks of starting consistent daily use.

Philip Kingsley Density Stimulating Scalp Toner Reviews

Several reviewers appreciate the cooling sensation and scalp-soothing properties, noting reduced itchiness and a fresher feel at the roots. However, some users report that the watery formula can be difficult to control during application, particularly on shorter hair.

Philip Kingsley Density Stimulating Scalp Toner earns praise for its cooling sensation.

Kérastase Genesis Sérum Fortifiant Reviews

Reviewers report a noticeable reduction in shedding and even new growth after a few weeks of consistent use. Others appreciate the pleasant bergamot scent and lightweight, non-greasy finish.

On the other hand, some users feel that the results do not justify the premium price, particularly when the brand recommends purchasing additional products from the same range to maximize effectiveness.

Kérastase Genesis Sérum Fortifiant receives appreciation for its lightweight feel, though opinions vary on value for money.

Why Trybello Hair Helper Spray Stands Out

We know how frustrating it is to invest in a product that doesn't live up to its promises. That's exactly why we back every bottle with our 120-Day Complete Growth Guarantee, giving you the freedom to try our spray with zero financial risk.

Our Trybello Hair Helper Spray was built to support every hair type, from coily and curly to straight and relaxed. Instead of simply sitting on the surface, the formula penetrates directly into the scalp to nourish follicles at the root level. It dries light, leaves no oily film behind, and fits seamlessly into whatever styling routine you already follow.

Every ingredient in our spray is 100% botanical, vegan, and cruelty-free. Over 100,000 women have already made Trybello part of their routine, and we're ready to help you see the difference for yourself.

We also offer a full lineup of complementary products, from shampoos and conditioners to lash and brow serums, so you can build an entire care routine around ingredients you can trust.

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Frequently Asked Questions (FAQs)