# Waterless Hair Serums The H90 Hydroxytyrosol Hair Oil Serum Soothes & Strengthens Sentitive Scalps By Laura McQuarrie | Published 2025-03-19 | Fashion Source: Trend Hunter, https://www.trendhunter.com/trends/h90-hydroxytyrosol-hair-oil-serum References: [smb.westerlynews](https://smb.westerlynews.ca/article/Waterless-Beauty-Trailblazer-Olive-Tree-People-Launches-The-Worlds-First-Hydroxytyrosol-Powered-Hair-Serum?storyId=67da01a5e68a6d77f519c5b9) & [us.olivetreepeople](https://us.olivetreepeople.com/collections/otp-sets-hair-care)  Waterless beauty brand [Olive Tree People](https://www.trendhunter.com/trends/olive-rose) launched the H90 Hydroxytyrosol Hair Oil Serum as a root-to-tip solution for the hair and scalp with a potent antioxidant. OLIVEDA is the first brand to include the polyphenol hydroxytyrosol in a hair formula, and ORAC (Oxygen Radical Absorbance Capacity) testing identifies hydroxytyrosol as up to 1285% more powerful of an antioxidant as Vitamin C. As such, this powerhouse ingredient is useful for defending against environmental stressors, and supporting foundational scalp and hair health. The H90 Hydroxytyrosol Hair Oil Serum features a thoughtfully chosen blend of bioactive plant and floral oils—cold-pressed arbequina olive oil, sea buckthorn oil, lavender oil, and ylang ylang oil—and excludes filler oils like jojoba, coconut, and almond common to the hair serum category. This hair serum naturally works well with other OLIVEDA hair products, like the H22 Hair and Scalp Treatment fueled by olive leaf elixir and the [H23 All Hair Types Shampoo](https://www.trendhunter.com/trends/serum-shampoo). ## Trend Insights (Trend Hunter) - Score: 7.2/10 - Popularity: 89% | Activity: 91% | Freshness: 37% - Audience gender: 50% men, 50% women - Primary generations: Millennial - Top markets: North America ## 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 - **Waterless Beauty Innovations:** The rise of waterless formulations is pushing beauty brands to explore sustainable alternatives that conserve water resources. - **Antioxidant-infused Haircare:** Incorporating powerful antioxidants like hydroxytyrosol in hair products presents a new frontier in protecting and rejuvenating hair and scalp health. - **Natural Oil Blends:** Crafting hair serums with bioactive plant oils and avoiding conventional filler oils represents a shift toward purity and potency in haircare products. ### Where This Applies - **Sustainable Beauty:** The movement toward waterless beauty products is transforming the industry by reducing its environmental footprint and offering innovative sustainable solutions. - **Haircare Products:** Emergence of antioxidant-rich haircare formulations is driving a new wave of products designed to address hair and scalp health at a molecular level. - **Natural Personal Care:** The focus on natural and bioactive ingredients in personal care products is reshaping consumer expectations for purity and efficacy. ## Related on Trend Hunter - [Intensely Hydrating Scalp Serums](https://www.trendhunter.com/trends/daily-hydro-scalp-serum.md) - [Waterless Skin Tints](https://www.trendhunter.com/trends/skin-tint-serum.md) - [Naturally Derived Hair Serums](https://www.trendhunter.com/trends/vivi-naturals.md) - [Anti-Aging Scalp Serums](https://www.trendhunter.com/trends/scalp-longevity-treatment.md) - [Leave-In Powder Serums](https://www.trendhunter.com/trends/magic-restorative-serum.md) - [Frizz-Fighting Hair Serums](https://www.trendhunter.com/trends/mare-hair-serum-sale.md) - [Water-Based Hair Serums](https://www.trendhunter.com/trends/glow-for-it-hair-growth-serum.md) - [Type-Specific Scalp Serums](https://www.trendhunter.com/trends/hairapy.md) - [Hydration-Focused Scalp Serums](https://www.trendhunter.com/trends/blossom-essentials.md)