Olaplex
Nº.4 Bond Maintenance Strengthening Shampoo
7.6Good
A gentle, bond-building daily shampoo that suits damaged and color-treated hair, priced well above most rivals.
Shampoo5$34.00
OI Shampoo
A creamy, roucou-oil daily shampoo that leaves hair soft and shiny with a lingering scent; too rich for some fine hair and pricey.
7.4
Good
Beauty score
#8 of 8 wash day
Community
—/10
- Format
- Shampoo
- Size
- 9.5 fl oz
- Price per oz
- $4.54 / oz
- Price tier
- Mid-range
Made for: All hair types · Damaged hair · Color-treated hair
Last reviewed November 2, 2026 by our editors · How we score
The verdict
A creamy, roucou-oil daily shampoo that leaves hair soft and shiny with a lingering scent; too rich for some fine hair and pricey.
OI Shampoo is Davines' creamy daily shampoo from its OI line, made with roucou (Bixa orellana) seed extract, which the brand says is rich in antioxidants, beta-carotene and vitamin A, plus panthenol and a conditioning polymer and silicone. Davines pitches it for any hair type, especially frizzy or damaged hair, promising softness, shine and a warm, lasting scent. Who What Wear and Marie Claire praise its milky texture and softening effect. Some Reddit users with fine, low-porosity waves find the OI line too heavy, and it costs more than most shampoos.
Best for
- Dry, frizzy or color-treated medium to coarse hair
- Fans of a luxurious, scented wash-day experience
- Pairing with the OI Conditioner or OI Oil
What we love
- Creamy, velvety lather that leaves hair soft and shiny
- Sulfate-free cleansing base
- Signature warm, lingering scent
- Offered in a 500 ml refill pouch
Worth knowing
- Expensive for a daily shampoo
- Can be too rich for fine, low-porosity hair
- Heavily fragranced
How it scored
The breakdown.
Five factors, weighted for formulas. Here’s our working.
7.4Good
Beauty score out of 10. Brands can’t pay for placement — ever.
- Results30%7.6
Editors describe soft, shiny hair from a gentle, milky cleanse, but some Redditors with fine, low-porosity waves find the OI line weighs them down.
- Formula & ingredients20%7.2
A mild sulfate-free surfactant blend with panthenol, roucou extract, guar and amodimethicone; it is heavily fragranced, with several fragrance allergens listed.
- Texture & experience15%8.2
The rich, velvety lather and warm, lingering scent are its signature, though Who What Wear notes the texture may not suit everyone.
- Value20%6.6
At $43 for 280 ml it costs well above drugstore and many salon shampoos; the 500 ml refill pouch lowers the unit price.
- Community love15%7.3
Davines' OI line has a loyal salon following, but shampoo-specific reviews are fewer than for the OI Oil and All in One Milk.
Beauty profile
Inside the bottle.
Texture
Creamy shampoo with a soft, velvety, detangling lather (brand)
Format
Shampoo
Fragrance
Contains fragrance — Warm, lasting fragrance that lingers on hair (brand)
Size
9.5 fl oz / 280 ml
Key ingredients
Ingredient encyclopedia →What’s in it: Roucou (Bixa orellana) seed extract, which Davines says supplies antioxidants, beta-carotene and vitamin A, with panthenol, sunflower seed oil, guar and amodimethicone in a sulfate-free isethionate and sulfosuccinate base.
How to use
Massage into wet hair, focusing on the scalp, work through the lengths to the ends, rinse thoroughly and repeat if needed; Davines suggests following with OI Conditioner or OI Hair Butter.
Full ingredient list (INCI)43 ingredients · key actives highlighted · as listed by the brand
- AQUA / WATER / EAU,
- SODIUM LAUROYL METHYL ISETHIONATE,
- DISODIUM LAURETH SULFOSUCCINATE,
- SODIUM LAUROYL SARCOSINATE,
- COCAMIDOPROPYL BETAINE,
- SODIUM LAURYL SULFOACETATE,
- SODIUM METHYL 2-SULFOLAURATE,
- PANTHENOL,
- PARFUM / FRAGRANCE,
- SODIUM METHYL ISETHIONATE,
- BENZYL ALCOHOL,
- ACRYLATES/C10-30 ALKYL ACRYLATE CROSSPOLYMER,
- LAURIC ACID,
- PPG-26-BUTETH-26,
- COCO-GLUCOSIDE,
- PHENETHYL BENZOATE,
- GLYCERYL OLEATE,
- PEG-40 HYDROGENATED CASTOR OIL,
- SODIUM BENZOATE,
- GLYCOL DISTEARATE,
- CITRIC ACID,
- TRISODIUM ETHYLENEDIAMINE DISUCCINATE,
- POLYQUATERNIUM-7,
- DISODIUM 2-SULFOLAURATE,
- SODIUM HYDROXIDE,
- SODIUM LAURATE,
- AMODIMETHICONE,
- GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE,
- C11-15 ALKETH-7,
- HELIANTHUS ANNUUS (SUNFLOWER) SEED OIL,
- GLYCERYL STEARATE,
- GLYCERIN,
- LAURETH-9,
- TRIDECETH-12,
- BIXA ORELLANA SEED EXTRACT,
- HEXAMETHYLINDANOPYRAN,
- EUCALYPTUS GLOBULUS OIL,
- ACETYL CEDRENE,
- TERPINEOL,
- CITRONELLOL,
- METHYL SALICYLATE,
- LAVANDULA OIL/EXTRACT,
- GERANIOL.
Formulas change. Always check the packaging, and patch-test if your skin is reactive.
Creator video reviews
Watch it in action.
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What people say
Straight from the source.
Verbatim from Reddit, forums, blogs and the beauty press — linked, so you can read the whole thread.
4 verbatim quotes · 2 positive · 2 mixed
Who What WearPositive
This shampoo for oily hair has a milky consistency that softens strands.
Who What WearMixed
Texture may not suit all tastes
Marie ClairePositive
This shampoo contains roucou oil, an antioxidant-rich ingredient that leaves your hair soft, shiny, and voluminous.
r/WavyhairMixed
I remember the Davines Oi being too heavy for me, though I like the milk spray as a detangler or light leave in.
Price & value
Is it worth it?
Typical price
$43.00
for 9.5 fl oz / 280 ml
Per ounce
$4.54
DrugstoreMid-rangePrestigeLuxury
About 18% more per ounce than the typical wash day we review. Our value score: 6.6/10 for a mid-range pick.
Price checked November 2026 at a non-Amazon retailer. Prices change — retailers show the current one.
Where to buy
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Community
What members noticed.
Ratings, skin types and the benefits people actually saw — logged on the Benefit Wheel.
No member ratings yet.
Tried it? Your score — and your skin or hair type — helps the next person decide.
Highlighted: what it’s built to do.
Discussion
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Tried Davines OI Shampoo? Ask a question or share how it’s working for your skin or hair — you’ll be the first.
FAQ
Good questions.
What is roucou oil in Davines OI Shampoo?
Roucou comes from the Amazonian achiote plant (Bixa orellana). Davines says it is high in antioxidants, beta-carotene and vitamin A and helps reduce damage from external aggressors for a silky feel.
Is Davines OI Shampoo good for fine hair?
Davines says it suits any hair type, but some Reddit users with fine, low-porosity waves found the OI line too heavy and preferred lighter or more clarifying shampoos.
Is OI Shampoo sulfate-free?
Its ingredient list uses isethionate, sarcosinate and sulfosuccinate cleansers rather than SLS or SLES. It does contain amodimethicone and fragrance.
How do you use it?
Davines says to massage it into wet hair at the scalp, work it through to the ends, rinse thoroughly and repeat if needed, then follow with OI Conditioner or OI Hair Butter.
Sources we checked (7)
- us.davines.com/products/oi-shampoo
- us.davines.com/products/oi-shampoo.json
- us.davines.com/
- whowhatwear.com/uk/best-shampoos-and-conditioners-for-oily-hair
- marieclaire.com/beauty/hair/davines-leave-in-hair-mask/
- reddit.com/r/Wavyhair/comments/1ohkdil/stringy_waves_no_matter_what/
- youtube.com/watch?v=y15MaUNAFMg
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