YSL Lash Clash mascara: a Guru Score of 73% from 5 experts

What the experts use it for.

The concerns the experts tie this product to, in their own words. Paid and founder takes don't count.

What the gurus are saying.

Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.

All takes Yay takes Nay takes Mixed takes Hide sponsored

Mixed Makeup

1.46M subs

~Yay

"This is from YSL. It's a little travel size of Lash Clash. I've loved Lash Clash forever. [...] Isn't this mascara so good by the way? Look at that. I was so happy to get this. This was like in one of my Sephora orders and I was like yes. I love a travel size. I love bringing it back. Reminding me why I love YSL Lash Clash so much."

Dr. Shereene Idriss

1.73M subs

~Mixed

"I always start off with YSL's Lash Clash in the number four blue. I look a bit whackadoo because I'm too pale to use it, so then I go in with a black mascara on top."

Allie Glines

829k subs

~Yay

"The YSL Lash Clash Mascara is a beefy mascara. The wand is so huge so it can get a little messy, but it's the combo I'm wearing on my lashes today, paired with the Dior lash primer. It was one of my favorite combo discoveries thanks to Nikki and Lisa, [...] and I'm so glad I picked it up."

All 5 takes from Allie Glines

Natasha Denona Recreated the Gold Palette?!

"I'm going to follow that up with the YSL Lash Clash Mascara. This duo just really packs a punch so I want something really intense today."

What I Bought at Sephora... Uh oh 😬

"The lash primer is on now we'll apply that same mascara. Wow, my lashes feel so curled. I'm pretty sure it was the primer that kind of set the stage but wow, my lashes feel very very curled."

IT'S TIME!! First Day of Fall MAKEUP TUTORIAL 🍂😍

"I'm going to use my intense lash combo starting with the Dior lash primer [...] and then we're going to go in with the YSL Lash Clash Mascara. I'm going to really layer this up."

Full Face of NOTHING NEW: GRWM!! 😘

"I'm going to layer up the YSL Lash Clash Mascara. With all this eyeliner I wanted quite a bit of mascara, so a voluminous mascara too, and I felt like this one would be perfect especially when paired with the lash primer."

THE BEST MAKEUP OF 2024!!! (Final Episode)

"The YSL Lash Clash Mascara is a beefy mascara. The wand is so huge so it can get a little messy, but it's the combo I'm wearing on my lashes today, paired with the Dior lash primer. It was one of my favorite combo discoveries thanks to Nikki and Lisa, [...] and I'm so glad I picked it up."

Abbey Yung

887k subs

~Mixed

"I get average length with this, amazing volume, and good separation. Overall, same thing as the last two mascaras, just not my favorite kind of vibe. With this one I don't really get any flaking or smudging, but you can definitely see that it wears a bit. So we're starting to enter the territory of mascaras that are better than the ones we've seen before. Good, but it doesn't blow my socks off."

Caroline Hirons

250k subs

~Yay

"This is YSL Lash Clash. I like the brush. I like that it gives you fibers and oomph. I need oomph. I don't want discreet mild lashes. What is the point?"

What the evidence says.

Independent of what the gurus think, this is what the published research supports about the main active ingredients here.

Alpha hydroxy acids

Alpha hydroxy acids loosen the bonds holding dead cells at the surface. The evidence supports smoother texture and more even tone over time, and they can leave skin more sensitive to sun.

Source: NIH, National Library of Medicine

Humectants and emollients

Ingredients like these draw water into the surface layers and slow how fast it leaves. The evidence is for comfort, softness and hydration rather than for changing the structure of the skin.

Source: DermNet

Frequently asked.

What is YSL Lash Clash mascara?

YSL Lash Clash is a volumizing mascara with a large wand, designed to give lashes fuller, more dramatic definition. It is available in black and in colored shades.

Is YSL Lash Clash mascara worth it?

The gurus mostly approve it, but with enough reservations to keep it in the middle at a Guru Score of 73%.

What is YSL Lash Clash mascara's Guru Score?

YSL Lash Clash mascara holds a Guru Score of 73%. That is our read on how warmly the experts talk about it, based on the verdicts of 5 expert reviewers we have collected.