Olaplex

Olaplex No. 7 Bonding Oil.

Serums

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About this product

A lightweight bonding hair oil from Olaplex designed to add shine, smooth frizz, and offer heat protection while strengthening hair.

Full ingredients

Dimethicone, Isohexadecane, C13-14 Isoparaffin, Coco-Caprylate, Phenyl Trimethicone, Bis-Aminopropyl Diglycol Dimaleate, Propanediol, Zea Mays (Corn) Oil, Beta-Carotene, Helianthus Annuus (Sunflower) Seed Oil, Moringa Oleifera Seed Oil, Punica Granatum Seed Oil, Water (Aqua), Morinda Citrifolia Fruit Powder, Fragrance (Parfum), Hexyl Cinnamal, Eclipta Prostrata Extract, Ethylhexyl Methoxycinnamate, Limonene, Tocopherol, Citral, Linalool, Melia Azadirachta Leaf Extract, Citronellol, Pseudozyma Epicola/Camellia Sinensis Seed Oil Ferment Extract Filtrate

Guru Score

66%

Mixed

6 experts · Moderate agreement

6Gurus

3Yay

1Mixed

2Nay

What they liked

Lightweight texture, absorbs without heaviness
High-gloss finish
Heat and UV protection

What they flagged

Fragile packaging breaks easily

What the gurus are saying

Paige Koren has fully finished a bottle, and Jamie Genevieve says it keeps her hair under control and works as a heat protectant.

Synthesized from 6 expert reviews · most recent take July 2026

Type

SerumsOil

Key actives

Vitamin ESPF

Formula notes

Contains fragranceNo drying alcohol

Where to buy

Sephora → Ulta → Amazon → Google → iHerb →

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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

Beyond50Skin

32k subs

~Nay

"They have the Olaplex oil. I find this a little bit on the heavy side, so I have not repurchased it."

Dr Dray

2.69M subs

~Mixed

"I've used a lot of their products over the years, but the packaging is really chintzy. Like, it breaks easily."

Doctor Anne

56k subs

~Yay

"I finished one bottle of Olaplex No 7 Bonding Oil, which I use after washing and before I heat style, while I use the cheaper Garnier oil each time before I brush my hair to reduce friction."

All 2 takes from Doctor Anne

So many skincare empties - Everything I used up in 2024 | Doctor Anne

"I finished one bottle of Olaplex No 7 Bonding Oil, which I use after washing and before I heat style, while I use the cheaper Garnier oil each time before I brush my hair to reduce friction."

My most loved skincare 2023 - Holy grail routine | Doctor Anne

"It's my hair oil for after wash and pre-blow dry."

Dr. Jenny Liu

323k subs

~Yay

"Olaplex No. 7 Bonding Oil is great because it's lightweight, it's multitasking in the sense it helps to smooth, add shine, reduce frizz, but at the same time protect hair from UV damage and heat damage, and really adds a nice high gloss finish. It's very lightweight and just applies nicely on the ends. I apply it after I shower before I blow dry my hair, and then I'll actually apply a coat in between hair washing, especially at night, to the ends."

Skin Obsessed Mary

33k subs

~Nay

"I used to be very loyal to the Olaplex No. 7 Bonding Oil and I've pre purchased that so many times and I have not used it once since I bought this."

All 2 takes from Skin Obsessed Mary

⭐️ Airplane Skincare | Skin Obsessed Mary

"I go for my Olaplex Bonding Oil, this is my best friend in the whole wide world. I will start off by giving my hair a bit of a brush, and then I put through about five or six shakes of that. [...] I now have horrible menopausal straw hair, that's the worst thing in the whole wide world, so oils have become my new best friend."

💇‍♀️ Oway Glossy Nectar | Best Product for Soft Hair | Menopause Hair

"I used to be very loyal to the Olaplex No. 7 Bonding Oil and I've pre purchased that so many times and I have not used it once since I bought this."

Jamie Genevieve

975k subs

~Yay

"This Olaplex oil, I have been using it so much every day and hardly anything's used, perfect size for travel. I've been using this every day on my hair because I've been washing my hair every day, so I'm frizzy at the moment, but this oil is really, really helping keep it under control, and it's actually a heat protectant. I've enjoyed putting this through my hair at the start of the day before we go in the sun, and then after I wash it, just to try and tame some frizz. It's a really lovely oil."

What the evidence says.

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

Vitamin E

Vitamin E is an antioxidant, and it is often in a formula to keep the other ingredients stable rather than as the active itself. It pairs well with vitamin C, though on its own the evidence for visible change is limited.

Source: NIH, National Library of Medicine

Frequently asked.

What is Olaplex No. 7 Bonding Oil?

A lightweight bonding hair oil from Olaplex designed to add shine, smooth frizz, and offer heat protection while strengthening hair.

Is Olaplex No. 7 Bonding Oil worth it?

The gurus are split. 3 of the 6 gurus give it their stamp of approval while 2 would skip it, which lands it in the middle at a Guru Score of 66%.

What is Olaplex No. 7 Bonding Oil's Guru Score?

Olaplex No. 7 Bonding Oil holds a Guru Score of 66%. That is our read on how warmly the experts talk about it, based on the verdicts of 6 expert reviewers we have collected.