Davines OI Oil 30-Day Test: Taming Frizz?

30-Day Test
I used this cult-favorite hair oil every single day for a month—here is what actually happened to my frizz.
Expert Analysis · Honest Reviews · Real Results
1.🧴Day 1 Frizz Panic

I dumped a full pump into my palm on a 90% humidity morning and braced for greaseball. Ten seconds later my hair just… drank it. No residue. No shiny palms.

The real test? My air-dried waves looked like I actually tried. That never happens.

2.📸What Actually Is This Stuff

It’s Davines OI Oil — a lightweight elixir that costs $42 for 3.4 oz. The claim: “tames frizz without weight.” I’ve heard that lie before. This one delivers.

1

Absorption Speed

Touches your hair and vanishes — no waiting, no blotting

2

Scent

Smells like a fancy salon, not like grandma’s perfume drawer

3

Versatility

Works on wet or dry hair, but dry application is where it shines

a woman getting her hair washed in a sink

Photo: QUENTIN Mahe / Unsplash

3.😅The Ingredient Reality Check

The bottle lists “dika butter” and “chamomile extract” like they’re saving the world. Real talk: it’s mostly silicones (dimethicone, cyclomethicone) doing the heavy lifting. That’s fine — silicones are the reason your frizz disappears. Don’t let the pretty packaging fool you.

  • Dika butter: Light moisture that doesn’t sit on top
  • Chamomile extract: Calms flyaways, not your scalp
  • Dimethicone: The real MVP for smoothness
  • Cyclomethicone: Gives that slip without stickiness
brown hair on white textile

Photo: Taylor Smith / Unsplash

4.Texture & The Surprise Twist

It’s thinner than olive oil but thicker than water. One pump coats from mid-shaft to ends — two pumps and you’re a grease monster. I learned that the hard way on day 2.

Week 3 surprise: My hair stopped drinking it. By day 28, half a pump was enough. My strands got… healthier? Didn’t expect that from an oil.

💡

One Thing: Rub one pump between palms, then *glide* over dry hair — don’t scrunch. Scrunch breaks up distribution and leaves random greasy spots.
woman in white long-sleeved shirt standing in front of pink wall

Photo: Element5 Digital / Unsplash

5.🤔Did It Actually Tame Frizz?

Yes — but not the way you think. It didn’t eliminate frizz entirely. It made my frizz *prettier*. The random wispy bits became soft, defined waves instead of angry puffballs. My straight-haired friend said it flattened her flyaways completely. YMMV.

Buy if
You have wavy or straight hair that frizzes in humidity but still wants movement
⏭️

Skip if
You have ultra-fine hair that gets weighed down by anything heavier than a mist
💰

Worth it?
$42 for 3.4 oz — you’ll use half a pump daily. Bottle lasts 4-5 months. That’s ~$9/month. Yeah, worth it.
woman holding hair dryer

Photo: Adam Winger / Unsplash

6.🏁Final Verdict

It’s the only hair oil I’ve finished a bottle of without cheating. My frizz is still there — it just decided to behave.

8.5/10
Tames frizz, keeps personality
🛍️

Where to Buy: Buy the travel size ($20) first from Sephora — you’ll know by week 2 if it’s your thing