Demi Moore debuted a “glass hair” finish at the Cannes Film Festival premiere of La Vie D’Une Femme, styled with Kerastase Anti-Frizz Hair Oil by celebrity hairstylist Dimitris Giannetos. The weightless, smoothing formula is described as helping tame flyaways,
Demi Moore didn’t just show up for Cannes—she arrived with a finish that looked like it belonged under a spotlight and a microscope at the same time.
At the premiere of La Vie D’Une Femme during the Cannes Film Festival. Moore’s long brunette hair wore a regal. glass-like polish: ultra-reflective. frizz-free. and so sleek it appeared almost liquid in the light. Celebrity hairstylist Dimitris Giannetos credited the look to Kerastase Anti-Frizz Hair Oil. a shine-boosting product used to achieve that smooth. frizz-controlled effect.
Giannetos used the oil to refine Moore’s signature hair into a weightless yet intensely smoothing finish. The formula is positioned as a way to tame flyaways, soften dry ends, and leave hair with an expensive-looking sheen—without making it feel greasy.
The product is described as serum-like and lightweight, designed to penetrate strands rather than sit on top. That matters for the end result: it’s meant to add movement while keeping flyaways under control. including hair that’s been heat styled. color treated. or exposed to humidity. Instructions are simple too—work through damp hair before blow drying for a smoother finish. or apply to dry hair after styling to add shine and definition. especially through the mid-lengths and ends.
One reason stylists gravitate toward it is the blend of nourishing oils and conditioning ingredients. The oil is infused with wild rose in oil. described as helping boost softness and shine while delivering a silky. light-reflective finish. It also includes moisturizing agents meant to smooth the appearance of rough, dry cuticles, with no sticky residue left behind.
There’s also a clear difference in how the product is supposed to feel compared with heavier options. A reviewer with “dry and frizzy” hair called it “magical” and not “heavy and greasy like other oils.”
Moore’s Cannes hair moment is now tied to a very shop-ready solution: Kerastase Gloss Absolu Glaze Drops Anti-Frizz Hair Oil for $39 at Amazon. Prices are noted as accurate as of the publishing date but subject to change.
Demi Moore Cannes Film Festival La Vie D’Une Femme glass hair Kerastase Anti-Frizz Hair Oil Kerastase Gloss Absolu Glaze Drops Dimitris Giannetos anti-frizz hair oil Amazon hair oil
So it’s just oil?? Smh my hair doesn’t look like Cannes even with regular olive oil.
Wait so the “glass hair” is from oil before blow drying? That seems like it would make it greasy though. People really pay $39 for that?
I saw this on TikTok I think and the wild rose in oil thing sounds fake lol. Like if it’s so lightweight why do all “anti-frizz” products still make my hair feel weird by day 2? Also Cannes hair always looks perfect anyway, lighting is cheating.
Amazon link vibes… next they’ll say you can buy “spotlight hair” for $39 and suddenly look like Demi Moore. I’m not buying oil that says it penetrates strands, hair has follicles not like a sponge. But yeah the microscope shiny part is kinda crazy though.