FAQ

  • Question
    Where can I buy éprouvage hair products?
    Answer
    éprouvage is sold on our website, at various Ulta locations, on Ulta.com, and throughout the US in independent salons. To find a location near you, please visit our Store Locator.
  • Question
    Are éprouvage hair growth products considered to be ‘all natural hair products’?
    Answer
    The éprouvage hair growth products contain many natural ingredients, however, for maximum performance we have determined that our products need to also contain ingredients that do not fall under the “natural” definition in order to achieve enhanced benefits and product efficacy. We try to use natural ingredients whenever possible, but the highest performance while maintaining product safety is our top priority.
  • Question
    What is Redensyl®?
    Answer
    Redensyl® is the key ingredient found in the Reviving Scalp Serum. There is a wealth of information that can be found on a web search, but below are a few links to get you started. Keep in mind that Redensyl® is a cosmetic ingredient and therefore is not considered a drug ingredient like some other hair loss prevention products contain.
    http://www.induchem.com/news-home/redensyl-silver-award-at-in-cosmetics-2014/
    http://www.induchem.com/products/actives/hair-care/redensyl/
    http://www.cosmeticsbusiness.com/news/article_page/Redensyl__the_hair_growth_galvanizer/96717
  • Question
    Is eprouvage safe to use while pregnant?
    Answer
    Yes, all our products are safe to use while pregnant. Pregnancy has shown to be a leading factor in women’s hair fall, and therefore, éprouvage is a great preventative care option during pregnancy.
  • Question
    What is éprouvage’s stance on diversion?
    Answer
    Our company is strongly committed to the fight against diversion. Our hair products are only guaranteed when purchased from authorized professional salons and professional beauty retailers.
  • Question
    Does éprouvage use animal tested products?
    Answer
    No, we do not test any of our products on animals.
  • Question
    I would like to explore hair and beauty career opportunities at éprouvage. Who can I contact?
    Answer
    We are always looking for talented individuals to join the team! Please email us directly at info@eprouvage.com and include your current resume and a cover letter explaining what your ideal career looks like.


CLINICAL STUDY

The efficiency of the éprouvage key ingredient, Redensyl® was evaluated at 3% in a double-blind test versus a placebo by the manufacturer of Redensyl®, Induchem. Twenty six male volunteers were selected and these men applied the placebo or the product with 3% of Redensyl® on their whole scalp daily for 3 months. At the end of the test period, a shaved section of each volunteer was measured with phototrichogram techniques - a method to monitor whether the hair was in the growth phase (anagen) or hair fall phase (telogen). In this test, it was found that Redensyl® at 3% reduces the hair fall (telogen) phase by 17%*.

Additional in vitro tests were performed by testing Redensyl® at 1% to evaluate its potential on hair growth. Hair of four male donors suffering from alopecia were maintained alive in normal hair culture conditions. After 7 and 10 days, hair growth was measured compared to day 0 with pictures analysis. In these tests, Redensyl® at 1% increased hair growth by +214%** compared to untreated hair. The results of one use of the Gentle Volume Shampoo and Conditioner, Restorative Scalp Serum and Thickening & Plumping Spray.

Visit these links for more information on Redensyl®:

http://www.induchem.com/news-home/redensyl-silver-award-at-in-cosmetics-2014/
http://www.induchem.com/products/actives/hair-care/redensyl/
http://www.cosmeticsbusiness.com/news/article_page/Redensyl__the_hair_growth_galvanizer/96717

CONSUMER STUDY

In 2015, an independently managed in-home use test was conducted by a research agency of 53 users of professional hair care products to assess efficacy of the éprouvage four step regimen of Gentle Volume Shampoo, Gentle Volume Conditioner, Restorative Scalp Serum and Thickening & Plumping Spray. Baseline data for current shampoo and conditioners was collected from each of 53 consumers, followed by post use data after a minimum of 3 uses of the éprouvage products.

These are the documented results of that study:

  • 80% found the concept to be extremely appealing or very appealing
  • 82% felt the products met or exceeded expectations
  • 72% were extremely likely or very likely to purchase
  • 77% of women felt they had little to no hair loss with éprouvage
  • 85% of women felt their hair was less susceptible to breakage
  • Women felt their hair was 17% thicker