Cancer-Causing Chemicals in Your Shampoo? Here’s What This New Study Found

Ellebrow Microblading & Permanent Makeup Studio NYC

Breaking News — May 8 2025: A new study published in Environmental Science & Technology Letters sampled the weekly beauty routines of 64 Black and Latina women in Los Angeles. More than 53 % of the products they logged — from shampoos and body lotions to eyelash glue — contained formaldehyde or formaldehyde-releasing preservatives (FRPs).

Formaldehyde Infographic

Why does it matter? Formaldehyde is a known human carcinogen and has been banned from European cosmetics since 2009, yet it remains legal in the U.S. Repeated, low-level exposure can build up over time, raising risks for cancers as well as skin and respiratory irritation.


Key Numbers at a Glance


  • 47 % of skincare and 58 % of hair-care items in the study carried FRPs.
  • Participants used an average of 17 different products a day — one woman logged 43!
  • Common “hidden” ingredient names: DMDM hydantoin, imidazolidinyl urea, quaternium-15.



We shouldn’t have to be chemists to stay healthy. Janette Robinson Flint, study co-author


Disproportionate Impact on Women of Color


The researchers focused on Black and Latina communities because previous investigations found higher formaldehyde exposures linked to hair-straightening products and colorism-driven beauty standards. Social pressure to conform to Eurocentric hair norms means systemic racism literally shows up on the ingredient label.


What This Means for Your Brow or PMU After-Care


Freshly microbladed skin is especially vulnerable to irritants. Formaldehyde-releasing cleansers or lotions can:


  1. Prolong redness or swelling
  2. Interfere with pigment retention
  3. Increase overall toxic burden during healing


Good news: Safe swaps exist. We keep every Ellebrow after-care kit formaldehyde-free, and our studio carries vetted products you can trust.


If you care about hidden toxins, check your SPF too.


Next Step → Dive Deeper


Feeling overwhelmed by label lingo? Read our in-depth guide to spotting formaldehyde and choosing safer products

  • Is formaldehyde always listed by name?

    No. Most products hide it behind longer chemical names (see list above). That’s why the new guide includes a printable cheat sheet for your next shopping trip.

Share!

Women giving gifts to her mom
May 8, 2025
Give the gift of lasting beauty this Mother's Day with Nano Brows and Microshading from Ellebrow NYC. Perfect for moms with sensitive or mature skin, these treatments enhance natural beauty with minimal maintenance. Explore our Mother's Day special offers today!
Beautiful Girl wearing bunny ears and natural makeup
April 13, 2025
Ready for a beauty refresh? Discover why Spring 2025 is the perfect season to get Nano Brows at Ellebrow NYC. Natural, effortless, and made just for you.
Beautiful bride with perfect natural makeup
April 13, 2025
Are You Considering Nano Brows for Your Wedding?  Your wedding day is one of the most important days of your life, and every detail matters—including your eyebrows! If you want a naturally full, polished look without worrying about smudging or filling in your brows, nano brows might be the perfect choice for you.
The woman is wearing bunny ears and holding a gift box while making the
April 13, 2025
Looking refreshed—but no one knows why? Discover NYC’s secret to effortless beauty this spring: Nano Brows at Ellebrow. Natural, subtle, transformative.
woman has a question
April 9, 2025
Considering Nano Brows over existing microblading? Wondering if getting Nano Brows over old Microblading is possible? Ellebrow NYC provides expert advice on if, when and how you can make the switch for enhanced eyebrow aesthetics.
A mature woman is holding various shades of lipsticks and trying to decide.
March 11, 2025
Discover the best lipstick shades and formulas for mature lips, plus how lip blushing can enhance color and definition for a youthful, effortless look. Find your perfect lip solution today!
Irish redhead girl with beautiful eyes wearing St Patrick's Day Hat and holding a clover leaf
March 4, 2025
Celebrate St. Patrick's Day with a sparkle in your eye! Discover how permanent eyeliner can enhance your festive look, ensuring your Irish eyes keep smiling all year round.
A woman is getting permanent makeup on her eyebrows.
February 10, 2025
While nano brows offer a long-lasting and effortless beauty solution, they aren’t for everyone. So, who should—and who shouldn’t—get nano brows? Ellebrow in NYC breaks it down.
Eyebrow Permanent Makeup / Microblading Laser Removal / Lightening
February 1, 2025
Wondering if you need microblading removal before getting Nano Brows? Learn how Ellebrow NYC guides clients through laser tattoo removal for natural, lasting results.
Valentine lip blushing
January 18, 2025
Enhance your natural beauty this Valentine’s Day with lip blushing. Discover how this semi-permanent treatment can give you effortlessly kissable, vibrant lips that last.
Alarm clock set for 6 months
January 17, 2025
Told you need a microblading touch-up every 6 to 12 months? Think again. Ellebrow in NYC reveals why this advice can be harmful to your brows and skin—and what you should do instead for long-lasting results.
2025 Happy New Year Design
January 6, 2025
The start of a new year is a time for fresh beginnings. If you’ve been thinking about simplifying your beauty routine or enhancing your natural features, 2025 might just be the year to take the leap into the world of permanent makeup.
A close up of a woman 's eye with purple eye shadow and rhinestones.
December 31, 2024
Discover the top 6 eyebrow trends of 2025 that are shaping the future of beauty. From natural, bushy brows to the artistry of nano brows, explore styles where authenticity meets innovation. Unravel elegance and step into a world where each stroke of artistry is a testament to individual expression and grace.
NYC woman writing a letter to Santa to ask for permanent makeup services as a gift.
December 3, 2024
Unwrap the beauty this holiday season with Ellebrow's microblading, permanent eyeliner, and lip blushing services. Perfect your festive look or give a unique gift!
A woman is at a family holiday gathering
November 22, 2024
Get holiday-ready with Ellebrow's microblading, nano brows, and more! Embrace the season with confidence and a festive glow that lasts beyond the holidays. Book now and let your beauty shine bright all winter long!
A woman is holding an alarm clock in her hand and rubbing her eyebrows.
November 4, 2024
Feeling the early darkness? Don't let it get you down! Discover why fall and winter are perfect for microblading or nano brows to keep you glowing all season long. Book your consultation now and let your brows shine brighter, even on the darkest days.
Holiday Party ready eyebrows
November 2, 2024
Ready to impress this holiday season? Discover Ellebrow's professional eyebrow services in NYC. Achieve flawless, natural-looking brows with our microblading, nano, and powder brow treatments. Book now for a festive beauty boost!
A woman with beautiful makeup is covering one eye and eyebrow with a maple leaf.
October 14, 2024
Discover when is the best time for microblading, nano brows or permanent makeup and why Fall may be ideal. Learn how cooler weather, reduced sun exposure, and holiday timing make autumn ideal for PMU.
Beautiful Woman in a witch costume with sultry red lips and hidden eyebrows
October 8, 2024
Step into the eerie night of Halloween with captivating brow-centric costume ideas inspired by iconic figures. Discover how your brows can be the centerpiece of your spooky ensemble with Ellebrow's imaginative guide. Contact us for elegant brow transformations beyond Halloween.
Day of the Dead Makeup
October 2, 2024
Discover the enchanting tradition of Day of the Dead and the pivotal role of eyeliner in crafting the iconic sugar skull makeup. Explore how eyeliner artistry helps celebrate life, memories, and cultural beauty in this captivating Ellebrow blog post.
More Posts