Hair Growth Serum with SPF

Abstract

Abstract Provided are compositions for protecting the hair from UV radiation and promoting hair growth. These compositions are in the form of a hair serum comprising an aqueous base; a UV filter comprising terephthalylidene dicamphor sulfonic acid and phenylbenzimidazole sulfonic acid sufficient to achieve an SPF of at least 15; at least one hair-thickening agent comprising biotinoyl tripeptide-1, niacinamide, and apigenin; and at least one humectant or emulsifier. Abstract

Description

The title should be short and concise and the same as the title you enter into online services. FIELD

[0001] The invention relates to the field of haircare and dermatology, specifically to formulations designed to enhance hair growth and protect the scalp from environmental damage. It addresses the intersection of cosmetic and therapeutic hair treatments with sun protection technology. BACKGROUND

[0002] Haircare products and treatments for hair growth are widely available, yet many fail to address the dual need for hair thickening and scalp protection. Current formulations often focus solely on stimulating hair growth without considering the impact of sun exposure on the scalp, which can lead to skin damage, irritation, and compromised hair health. Furthermore, while some haircare products incorporate SPF, they are typically greasy, heavy, or lack the efficacy needed for consistent use.

[0003] Existing patents in this field, focus either on hair growth formulations or scalp protection but do not effectively combine both functions in a single product. We have been unable to find any patents which use a serum based formula that provides SPF protection to the scalp.

[0004] SO'L THIC addresses these shortcomings by offering a lightweight, non-greasy serum that stimulates hair growth, strengthens hair strands, and protects the scalp with SPF. By combining these features, the invention not only promotes healthier hair but also safeguards the scalp from UV damage, a critical yet overlooked aspect of comprehensive haircare. 2025267518   17 Nov 2025 SUMMARY

[0005] SO'L THIC addresses the shortcomings of existing products by combining effective sun protection with advanced hair health benefits in a single, scientifically formulated product. Its unique formulation includes SPF 15, derived from active UV filters such as Terephthalylidene Dicamphor Sulfonic Acid and Phenylbenzimidazole Sulfonic Acid, which provide broad-spectrum sun protection to shield the scalp from harmful UV rays, reducing the risk of sunburn, skin damage, and long-term scalp conditions.

[0006] The serum's lightweight, non-greasy texture is achieved through a base of Water (Aqua), Propanediol, and Butylene Glycol, which ensure smooth application and rapid absorption. Key active ingredients such as Niacinamide, Salicylic Acid, and Caffeine stimulate blood circulation to the scalp, supporting healthy hair follicles and reducing hair loss.

[0007] To promote hair thickening and strengthening, the formulation includes Biotinoyl Tripeptide-1, Apigenin, and Oleanolic Acid, which work synergistically to improve hair density, strengthen hair shafts, and reduce follicular stress. Hydrolyzed Wheat Protein and Triticum Vulgare (Wheat) Starch provide additional nourishment, improving hair texture and moisture retention.

[0008] The serum also features PEG-40 Hydrogenated Castor Oil and PPG-26-Buteth-26, which act as solubilizers to ensure the uniform dispersion of active ingredients, while Polysorbate 20 stabilizes the formula. Preservatives such as Phenoxyethanol, Ethylhexylglycerin, and Hydroxyacetophenone ensure product safety and longevity.

[0009] Designed for men and women of all hair types, SO'L THIC is applied directly to the scalp using a dropper for targeted, mess-free application. Its innovative combination of UV protection and hair-strengthening properties fills a critical gap in the haircare market, offering a practical, multifunctional solution that prioritizes both scalp health and hair vitality. 2025267518   17 Nov 2025 DETAILED DESCRIPTION OF EMBODIMENTS

[0010] In one embodiment, SO'L THIC is a novel haircare serum designed to combine effective sun protection with advanced hair growth and thickening benefits. The serum is optimized for use by men and women, with a formulation that addresses both scalp health and hair vitality. Its lightweight, non-greasy nature makes it suitable for daily use without interfering with typical hairstyling practices. Formulation Composition and Preparation

[0011] The formulation of SO'L THIC is based on a water-based emulsion, carefully developed to ensure ingredient stability and compatibility. The key components and their roles are detailed below:

[0012] Active UV Filters a) Terephthalylidene Dicamphor Sulfonic Acid (Avobenzone): Provides broadspectrum UV protection, particularly against UVA rays, to minimize sun-induced skin damage and aging. b) Phenylbenzimidazole Sulfonic Acid: A water-soluble UVB filter that complements the UVA filter for comprehensive sun protection. These UV filters are carefully balanced to achieve SPF 15 efficacy while maintaining stability under typical environmental conditions, including heat and humidity. Unique Aspects of the Invention

[0013] SO'L THIC represents a significant advancement in the haircare and scalp protection market, addressing shortcomings in existing products that typically focus on either hair health or sun protection but rarely combine both functions effectively. The following details highlight the unique aspects of the invention: 2025267518   17 Nov 2025

[0014] 1. Integration of SPF in a Hair Serum: a) While sunscreens for the skin and some haircare products offer UV protection, there is a lack of targeted products providing sun protection specifically for the scalp. b) The inclusion of SPF 15 through Terephthalylidene Dicamphor Sulfonic Acid and Phenylbenzimidazole Sulfonic Acid ensures effective UV protection for the scalp without the heavy, greasy feel often associated with traditional sunscreens. c) The stability of the UV filters within a lightweight serum base ensures the product is suitable for daily use without interfering with hairstyling or leaving a visible residue.

[0015] 2. Dual-Functionality: a) Existing haircare products that promote hair growth do not simultaneously address the need for sun protection. Conversely, sunscreens for the scalp do not typically include active ingredients to enhance hair health or growth. SO'L THIC uniquely combines these functionalities in one product. b) The integration of UV filters with Niacinamide, Caffeine, and Biotinoyl Tripeptide-1 ensures users can protect their scalp while benefiting from improved hair density, strength, and overall health.

[0016] 3. Targeted Application Design: 2025267518   17 Nov 2025 a) Unlike conventional sunscreens or hair products that are difficult to apply directly to the scalp (especially for individuals with dense hair), SO'L THIC is packaged with a precision dropper that allows users to apply the serum directly to the scalp with minimal effort. This targeted approach ensures even distribution and maximum effectiveness.

[0017] 4. Non-Greasy, Lightweight Formulation: a) Traditional scalp sunscreens often leave a greasy residue, which can weigh down hair and make it appear unwashed. SO'L THIC addresses this issue with a water-based formula that incorporates Propanediol, Butylene Glycol, and other humectants to create a lightweight, fast-absorbing serum. b) This feature makes the product suitable for daily use, even for individuals with fine or oily hair, who might otherwise avoid heavier formulations.

[0018] 5. Advanced Hair Growth and Thickening Technology: a) Unlike existing hair serums that rely on single-function active ingredients, SO'L THIC uses a synergistic blend of Biotinoyl Tripeptide-1, Apigenin, and Oleanolic Acid to address multiple pathways of hair growth. These include follicle stimulation, anti-inflammatory action, and inhibition of DHT activity, providing comprehensive support for healthier and denser hair. b) The addition of Hydrolyzed Wheat Protein and Triticum Vulgare (Wheat) Starch further differentiates the product by improving hair shaft strength and texture, features not commonly addressed by scalp-specific sunscreens.

[0019] 6. Scalp-Specific Focus: 2025267518   17 Nov 2025 a) Many products in the market focus on the hair itself rather than the scalp. By targeting the scalp directly, SO'L THIC addresses an overlooked area critical to both sun protection and hair health. b) Sunburn or prolonged UV exposure on the scalp can lead to hair thinning, dryness, and even long-term skin conditions. SO'L THIC provides a preventative solution that protects the scalp while actively enhancing hair growth.

[0020] 7. Versatility Across Hair Types and Lifestyles: a) SO'L THIC is formulated for use by both men and women and is compatible with all hair types, including curly, straight, fine, and dense hair. This inclusivity ensures broad market applicability. b) The lightweight, non-residue formula is ideal for active lifestyles, allowing users to protect their scalp during outdoor activities without needing to worry about reapplication interfering with their hairstyle.

[0021] 8. Absence of Comparable Patents or Products: a) While scalp-specific sunscreens and hair growth serums exist independently, no existing product combines these functionalities in a single formulation. The unique blend of SPF and hair growth technology distinguishes SO'L THIC from products and patents currently available in the haircare market. b) For example, traditional scalp sunscreens focus solely on UV protection and lack active ingredients like Caffeine, Niacinamide, and peptides that are critical for stimulating hair growth and improving follicular health. Similarly, hair growth products on the market, such as minoxidil-based treatments, lack sun protection and often come with undesirable side effects like scalp irritation. 2025267518   17 Nov 2025 How SO'L THIC Overcomes Market Challenges

[0022] SO'L THIC addresses multiple challenges inherent in the current haircare landscape: 1. UV Stability and Efficacy: UV filters are formulated in a water-based emulsion that ensures stability under various environmental conditions, avoiding degradation common in some sunscreen formulations. 2. Ease of Use: The precision dropper eliminates the messiness of traditional sunscreens and ensures scalp-specific coverage without affecting hair strands. 3. Multifunctionality Without Compromise: By combining UV protection and hair health benefits, SO'L THIC reduces the need for multiple products, streamlining haircare routines for consumers. These unique aspects position SO'L THIC as a groundbreaking innovation in the haircare industry, offering a practical and scientifically advanced solution to the dual challenges of scalp sun protection and hair growth.

[0023] Hair Growth and Thickening Agents 1. Niacinamide: Enhances blood circulation in the scalp, reducing inflammation and promoting follicular activity. It also strengthens the scalp barrier, improving overall scalp health. 2. Caffeine: Stimulates hair follicles, extending the anagen (growth) phase of the hair cycle and reducing premature follicle regression. 3. Biotinoyl Tripeptide-1: Strengthens the hair roots, reduces follicular stress, and improves elasticity of the hair shaft. 4. Apigenin: A plant-derived flavonoid that enhances blood flow around the hair follicle, promoting stronger, thicker hair. 2025267518   17 Nov 2025 5. Oleanolic Acid: Reduces the effect of dihydrotestosterone (DHT) on the scalp, which is a key factor in hair loss, particularly in androgenic alopecia.

[0024] Moisturizing and Protective Ingredients 1. Hydrolyzed Wheat Protein and Triticum Vulgare (Wheat) Starch: These proteins provide a protective layer over hair strands, improving moisture retention and reducing breakage. 2. Propanediol and Butylene Glycol: Function as humectants, drawing moisture into the scalp and hair to prevent dryness.

[0025] Delivery and Stability Components 1. PEG-40 Hydrogenated Castor Oil, PPG-26-Buteth-26, and Polysorbate 20: Act as emulsifiers and solubilizers, ensuring even distribution of the hydrophilic and lipophilic components. 2. Hydroxyacetophenone, Phenoxyethanol, and Ethylhexylglycerin: Serve as preservatives, maintaining microbial safety and extending product shelf life.

[0026] Optional Additives 1. Citric Acid: Used to adjust pH for optimal scalp comfort. 2. Fragrance: Adds a pleasant scent, enhancing user experience.

[0027] Manufacturing Process 1. Base Preparation: A water-based phase is created by mixing Water (Aqua), Propanediol, and Butylene Glycol at controlled temperatures to ensure ingredient solubility. 2. Active Ingredient Incorporation: UV filters, hair growth agents, and proteins are sequentially added, ensuring each ingredient is thoroughly dissolved or dispersed. 2025267518   17 Nov 2025 3. Emulsification: Solubilizers such as PEG-40 Hydrogenated Castor Oil and Polysorbate 20 are added to stabilize the formulation. 4. Preservation and Fragrance Addition: Preservatives and fragrance are incorporated in the final step, followed by pH adjustment using Citric Acid. The final product is subjected to rigorous stability testing under various conditions, ensuring consistency and safety.

[0028] Method of Use The serum is packaged in a precision dropper bottle for targeted application. Users are instructed to: 1. Shake the bottle to ensure homogeneity of the formulation. 2. Apply a small amount of serum directly to the scalp, focusing on areas exposed to sunlight or experiencing thinning. 3. Gently massage the serum into the scalp using fingertips to ensure even distribution and absorption. The product is designed for daily use and is compatible with other haircare and styling products.

[0029] Benefits and Advantages 1. Dual-Functionality: Combines SPF 15 sun protection with active hair-thickening ingredients, addressing a gap in the haircare market. 2. Lightweight and Non-Greasy: Unlike existing products with SPF, SO'L THIC leaves no residue, making it suitable for daily use across all hair types. 2025267518   17 Nov 2025 3. Advanced Haircare Technology: Ingredients like Biotinoyl Tripeptide-1 and Oleanolic Acid provide long-term hair-strengthening benefits, reducing hair loss while improving hair density.

[0030] Alternative Embodiments 1. Higher SPF Variants: The formulation can be adapted to include higher SPF levels (e.g., SPF 20 or SPF 30) for users in regions with intense UV exposure. 2. Application Methods: In addition to the precision dropper, spray applicators or rollon dispensers can be utilized for user convenience. 3. Additional Ingredients: The serum may include botanical extracts such as aloe vera or rosemary for added soothing and antioxidant benefits. 4. Tinted Formulation: A tinted version could be developed to cater to users seeking coverage for thinning areas while protecting the scalp and enhancing hair growth.

Claims

1. A hair serum comprising:a) a water-based formulation;b) at least one UV filter selected from Terephthalylidene Dicamphor Sulfonic Acid and Phenylbenzimidazole Sulfonic Acid, providing sun protection with an SPF of at least 15;c) at least one hair-thickening agent selected from Biotinoyl Tripeptide-1, Niacinamide, and Apigenin;d) a delivery system comprising humectants and emulsifiers to ensure uniform application and absorption into the scalp.

2. The hair serum of claim 1, wherein the formulation further comprises Caffeine as a follicular stimulant to promote hair growth.

3. The hair serum of claim 1 or 2, wherein the formulation includes Hydrolyzed Wheat Protein and Triticum Vulgare (Wheat) Starch to improve hair shaft strength and reduce breakage.

4. The hair serum of claim 1, wherein the delivery system comprises PEG-40 Hydrogenated Castor Oil, PPG-26-Buteth-26, and Polysorbate 20.

5. The hair serum of claim 1, wherein the serum is packaged in a container with a precision dropper to facilitate targeted application to the scalp.

6. The hair serum of claim 1, wherein the formulation has a pH adjusted with Citric Acid for optimal scalp comfort and compatibility.

7. The hair serum of claim 1, wherein the product is formulated to be non-greasy and lightweight, ensuring ease of daily application without interfering with hairstyling.2025267518   17 Nov 20258. A haircare product for use on the scalp, comprising:a) a combination of UV filters providing SPF 15 protection;b) at least one active ingredient to reduce dihydrotestosterone (DHT) activity in hair follicles;c) a preservative system comprising Hydroxyacetophenone, Phenoxyethanol, and Ethylhexylglycerin.