# Ammonia-Free Hair Dyes Hally Created a Limited-Edition Blue Hair Dye with YouTuber Ellie Thumann By Laura McQuarrie | Published 2021-08-03 | Fashion Source: Trend Hunter, https://www.trendhunter.com/trends/blue-hair-dye References: [allure](https://www.allure.com/gallery/new-hair-care-products-august-2021) & [hallyhair](https://hallyhair.com/products/blue-crush) YouTuber Ellie Thumann collaborated with [Hally](https://www.trendhunter.com/trends/hally-hair-1) to create a limited-edition blue hair dye that's [ammonia-free](https://www.trendhunter.com/trends/garnier-good-permanent-hair-dye) and infused with beneficial ingredients like moisturizing aloe and stimulating ginseng. The special Blue Crush Color is applied in the form of a [foaming hair dye](https://www.trendhunter.com/trends/dyson-amino-leave-in-scalp-bubble-treatment) that washes out in just four to six weeks, providing a perfect way for Gen Z to refresh their look to match their mood. The demi-permanent color can be applied at home with ease thanks to a kit from Hally that contains all of the essentials for a DIY coloring job, including foaming developer, hair dye color, a pair of hair clips and latex-free gloves, plus other products to create a spa-like experience at home like soothing undereye gels and de-stressing putty. ## Trend Insights (Trend Hunter) - Score: 3.1/10 - Popularity: 47% | Activity: 36% | Freshness: 10% - Audience gender: 10% men, 90% women - Primary generations: Gen Z - 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 - **Ammonia-free Hair Dyes:** Opportunity to innovate in the beauty industry by creating ammonia-free hair dye products infused with natural and beneficial ingredients. - **DIY Hair Coloring Kits:** Opportunity to create user-friendly DIY hair coloring kits that provide consumers with everything they need for a successful at-home coloring experience. - **Limited-edition Collaborations:** Opportunity for brands to collaborate with social media influencers to create limited-edition products that appeal to Gen Z consumers. ### Where This Applies - **Beauty and Personal Care:** Beauty brands can offer ammonia-free hair dye products and DIY coloring kits infused with beneficial ingredients to attract health-conscious and environmentally conscious consumers. - **E-commerce:** The rise of online shopping provides opportunities for brands to sell their limited-edition collaborations with social media influencers directly to consumers without the need for a physical retail presence. - **Social Media and Influencer Marketing:** The use of social media and influencer marketing can help brands tap into the purchasing power of Gen Z consumers who are more likely to purchase products endorsed by their favorite social media personalities. ## Related on Trend Hunter - [Multi-Dimensional Hair Dyes](https://www.trendhunter.com/trends/dphues-color-dream.md) - [Free-From Hair Colors](https://www.trendhunter.com/trends/igora-zero-amm.md) - [Ammonia-Free Hair Colors](https://www.trendhunter.com/trends/color-art-fresh-line.md) - [Hair Product Retail Expansions](https://www.trendhunter.com/trends/hallo-hair-ulta-beauty.md) - [Ammonia-Free Cream Hair Dyes](https://www.trendhunter.com/trends/garnier-good-permanent-hair-dye.md) - [Glowing Neon Hair Collaborations](https://www.trendhunter.com/trends/hally-hair-1.md) - [Customizable Hair Dye Kits](https://www.trendhunter.com/trends/semipermanent-hair-color-kit.md) - [Whimsical Semi-Permanent Hair Dyes](https://www.trendhunter.com/trends/pastel-hour.md) - [Vibrant Anti-Fade Hair Colors](https://www.trendhunter.com/trends/clairol-bold-bright.md)