# Protective Thickening Serums SO'L THIC is a Hair Growth Serum with SPF15 By Laura McQuarrie | Published 2025-04-22 | Fashion Source: Trend Hunter, https://www.trendhunter.com/trends/sol-thic References: [indailysa.au](https://www.indailysa.com.au/news/business/2025/04/07/new-haircare-innovation-targets-cancer-risk) & [bynikol](https://bynikol.com/products/sol-thic)  The scalp is often forgotten in sun care routines, but SO'L THIC is an innovative serum designed protect this sensitive area with lightweight, nourishing SPF that doesn’t weigh hair down. This [thickening hair serum with SPF15](https://www.trendhunter.com/trends/moisture-sun-serum) is lightweight, non-greasy and beneficial for [supporting hair growth](https://www.trendhunter.com/trends/anagen-activator-serum), and boosting hair growth with 3% Procapil. The 100% vegan, cruelty-free formula for all hair types is Australian-made, with key ingredients including skin-caring favorites like niacinamide and [energizing caffeine](https://www.trendhunter.com/trends/caffeine-strengthening-scalp-serum). This serum from ByNikol holds deep meaning for the co-founders since personal and familial brushes with skin cancer inspired them to create something protective, comfortable and easy to use as part of existing hair care routines. SO'L THIC can be used morning or night, applied on and massaged into thinning areas, and reapplying as needed. ## Trend Insights (Trend Hunter) - Score: 5.5/10 - Popularity: 59% | Activity: 68% | Freshness: 39% - Audience gender: 30% men, 70% women - Primary generations: Millennial - Top markets: Asia ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Fashion](https://www.trendhunter.com/fashion) > [Hair](https://www.trendhunter.com/hair) ## Key Themes ### Key Themes Behind This Trend - **Spf-infused Haircare:** Haircare products incorporating SPF offer dual benefits of scalp protection and hair nourishment, presenting a cross-industry innovation between sun protection and haircare. - **Vegan Scalp Treatments:** The rise of vegan scalp treatments reflects a broader consumer demand for ethical and plant-based formulations in personal grooming. - **Non-greasy Hair Growth Solutions:** The development of non-greasy hair growth solutions addresses the need for lightweight products that do not compromise hair volume or style. ### Where This Applies - **Sun Protection:** Sun protection is expanding beyond traditional skincare, with innovative products emerging to shield typically overlooked areas like the scalp. - **Haircare:** Haircare is evolving with multi-functional products that combine aesthetic benefits like thickening with protective elements such as UV filters. - **Vegan Beauty:** Vegan beauty continues to gain traction as conscientious consumers seek cruelty-free and sustainably sourced options. ## Related on Trend Hunter - [Rejuvenating Scalp Serums](https://www.trendhunter.com/trends/vitamininfused-scalp-serum.md) - [Molecular Scalp Serums](https://www.trendhunter.com/trends/scalp-treatment-serum.md) - [Scalp Health Serums](https://www.trendhunter.com/trends/dualpeptide-scalp-serum.md) - [Naturally Derived Hair Serums](https://www.trendhunter.com/trends/vivi-naturals.md) - [Water-Based Hair Serums](https://www.trendhunter.com/trends/glow-for-it-hair-growth-serum.md) - [Broad Spectrum Spf Sprays](https://www.trendhunter.com/trends/hair-scalp-and-skin-spray.md) - [Topical Hair Growth Serums](https://www.trendhunter.com/trends/topical-hair-growth-serum.md) - [Derm-Developed Scalp Serums](https://www.trendhunter.com/trends/rhute.md) - [Clean Hair Growth Serums](https://www.trendhunter.com/trends/regro-hair-serum.md)