Overview

The Davines OI Shampoo and All-In-One Milk Set comes from a brand that's been a staple in salons across Italy for decades, and it's easy to see why stylists keep reaching for it. The star ingredient throughout the OI line is Roucou oil, an antioxidant-rich extract that's meant to bring back shine and softness to hair that's seen better days. Inside the box you get a full-size daily shampoo paired with a smaller, leave-in milk that handles styling duties. Positioning-wise, this sits firmly in salon-quality territory rather than drugstore shelf space, and the price reflects that. One thing you'll notice immediately is the scent, which is rich, warm, and lingers long after rinsing.

Features & Benefits

What stands out most about this shampoo and milk duo is how gentle the cleansing base feels, since it's sulfate-free and paraben-free, which makes a real difference if you've got color-treated hair or a scalp that reacts to harsher detergents. The Roucou oil and antioxidant blend, including beta-carotene and vitamin A, seem to target dullness and dryness specifically rather than just adding a temporary coating. After rinsing, hair feels noticeably softer and more manageable, almost milky to the touch, hence the name. The smaller milk bottle pulls double duty as a leave-in detangler, frizz control, and heat protectant before styling. The fragrance is strong and sticks around for hours. Used daily, it doesn't weigh hair down for most textures, though results vary.

Best For

This haircare bundle makes the most sense for anyone dealing with dry, frizzy, or color-treated hair that needs a boost in softness and shine, since that's really where the formula shines. If you've been hunting for a sulfate-free shampoo but still want that satisfying lathered-up feeling during your shower, this fits the bill nicely. It's also a smart way to dip your toes into the broader OI line without committing to full-size versions of everything, since the set gives you a taste of both the shampoo and the styling milk. People who like multi-tasking products will appreciate that the milk alone covers detangling, frizz control, and heat protection in one step. The smaller milk size also makes it genuinely travel-friendly, easy to toss in a carry-on without taking up much space.

User Feedback

Look through enough reviews and a pattern emerges pretty quickly: people rave about the scent and how soft hair feels right after the first wash, often calling it one of the better smelling products they've tried. On the flip side, a handful of reviewers with fine or thin hair mention that it can feel a bit heavy if you use too much, so a little goes a long way for those textures. A common gripe is that the milk runs out well before the shampoo does, which makes sense given how much smaller that bottle is. Despite the higher price tag compared to drugstore options, plenty of repeat buyers say it's worth it for the long-term condition of their hair. A few even compare the shine results favorably against other salon brands they've tried.

Pros

  • Leaves hair noticeably softer and shinier after just one wash, according to most reviewers.
  • Sulfate-free and paraben-free formula feels gentle on color-treated or sensitive scalps.
  • Roucou oil and antioxidants help tackle dryness and dullness rather than just masking it.
  • The leave-in milk doubles as a detangler, frizz fighter, and heat protectant in one product.
  • Fragrance lingers for hours, which many users count as a standout perk.
  • Compact milk size makes this shampoo and milk duo easy to pack for travel.
  • Works well as a low-risk way to sample the OI line before buying full-size products.
  • Many repeat buyers say long-term hair health justifies the higher price tag.
  • Holds up well against other salon brands when it comes to shine results.

Cons

  • Priced well above typical drugstore shampoos, which may not suit tighter budgets.
  • The milk bottle is small and tends to run out long before the shampoo does.
  • Some users with fine or thin hair find the formula a bit heavy if overused.
  • The strong, lasting scent might be overwhelming for people sensitive to fragrance.
  • Not widely available in smaller travel sizes beyond what is included in this set.
  • Buying the shampoo and milk separately later can feel pricier than expected.
  • Results take repeated use to fully notice, so a single wash may underwhelm some.
  • The packaging does not make it obvious how much product the milk bottle actually contains.

Ratings

These scores for the Davines OI Shampoo and All-In-One Milk Set were generated by AI after analyzing thousands of verified user reviews from shoppers worldwide, with spam, bot activity, and incentivized feedback filtered out. The aim is to give you an honest snapshot of how this haircare bundle performs in real routines, not just on a brand's marketing page. Both the praised qualities and the recurring frustrations are reflected transparently, so you can weigh them against your own hair type and budget.

Cleansing Performance
84%
Despite being sulfate-free, this shampoo and milk duo still produces a soft, creamy lather that feels like it's actually doing something during a morning shower. Many reviewers note their scalp feels clean without that squeaky, stripped sensation that harsher formulas leave behind.
A handful of users with naturally oily roots felt the gentle formula left a slight residue after a couple of days, especially if they skip a wash. It's not a deep-cleansing clarifying shampoo, so buildup-prone hair types may need an occasional stronger wash in rotation.
Softness & Smoothness Results
91%
This is where the line earns its reputation: reviewers consistently describe hair feeling noticeably softer right out of the shower, almost silky to the touch. The milky texture of the shampoo seems to coat strands in a way that smooths down rough cuticles immediately.
On very fine or low-porosity hair, a few users felt the softness tipped into limpness after a day or two without a lightweight styling product on top. Results also seem to build gradually, so a single wash may not fully showcase the effect.
Shine Payoff
88%
Several long-time salon-product users compared the shine results favorably to other premium brands, noting hair looked glossier under both natural and indoor lighting. The Roucou oil seems to add a healthy-looking sheen rather than an obvious, greasy shine.
Darker hair tones reportedly show the shine boost more dramatically than very light or gray hair, where the effect is more subtle. A few reviewers also felt the shine faded faster on days they used heat styling tools heavily.
Fragrance & Scent Longevity
83%
The signature OI scent is a major talking point, with many reviewers saying their hair smelled noticeably good well into the evening, long after their morning shower. For people who enjoy a spa-like sensory experience as part of their routine, this is a clear win.
That same intensity is a dealbreaker for buyers sensitive to fragrance or who prefer unscented hair products, with a few describing it as overpowering in small spaces. Scent strength also seems to vary slightly depending on how much product is applied per use.
Fine & Thin Hair Compatibility
67%
33%
Some fine-haired users still enjoyed the formula when applied sparingly, finding it added shine and manageability without obvious heaviness, especially when used a couple of times a week. A light hand with the All-In-One Milk seemed to be the key to making it work.
This is the most consistent complaint in reviews: people with fine or thin hair frequently mention a heavy, weighed-down feeling when using a normal amount. It often takes some trial and error with quantity, which can feel frustrating for those new to the line.
Dry, Frizzy & Color-Treated Results
89%
For hair that's dry, frizzy, or chemically treated, this haircare bundle seems to hit its intended audience squarely, with reviewers reporting smoother strands and reduced frizz within the first week of use. The shampoo's softening base and the milk's frizz control work well together.
A few users with severely damaged or chemically processed hair felt they still needed a deeper treatment mask alongside this set for full repair. It's a strong daily maintenance step, but not positioned as a standalone intensive treatment.
Roucou Oil & Antioxidant Formula
92%
The Roucou oil and antioxidant blend, including beta-carotene and vitamin A, gets repeated praise for genuinely improving hair texture over time rather than just sitting on top of strands. Reviewers who stuck with it for a few weeks reported a cumulative improvement in dullness and dryness.
Because the effects build gradually, a few first-time buyers expected more dramatic overnight results and were initially underwhelmed before noticing the longer-term difference. The ingredient story is strong, but it does require patience and consistent use.
Sulfate-Free & Paraben-Free Formula
86%
Buyers with sensitive scalps or color-treated hair frequently mention appreciating the sulfate-free, paraben-free base, noting less irritation and better color retention between salon visits. It feels like a meaningful step up from typical drugstore formulas for anyone prioritizing gentler ingredients.
A small number of reviewers coming from heavy clarifying shampoos felt the cleanse was slightly milder than they were used to, taking a wash or two to adjust expectations. It's a deliberate trade-off for gentleness, but worth knowing upfront.
All-In-One Milk Versatility
85%
The All-In-One Milk gets a lot of love for replacing multiple products in one step, handling detangling, frizz control, and heat protection before a blowout or air-dry. For people who like a simplified routine, this multi-tasking aspect is a genuine time-saver on busy mornings.
Its small 1.69 fl oz size means it gets used up quickly if applied daily, and several reviewers were caught off guard by how soon they needed a refill. For heavy users, it can feel like the weakest link in an otherwise well-balanced set.
Value for Money
71%
29%
Repeat buyers consistently say the long-term improvement in hair condition justifies the price compared to constantly cycling through cheaper drugstore shampoos that don't deliver the same softness or shine. As an introduction to the OI line, the set also feels like a reasonable way to test the formula.
The price point sits well above mass-market shampoo, and the smaller milk size means buyers will likely need to purchase a full-size bottle separately sooner than expected. For budget-conscious shoppers, the overall cost per use can add up faster than anticipated.
Packaging & Bottle Size Balance
62%
38%
The shampoo bottle's size feels appropriate for regular daily use, lasting a reasonable amount of time before needing a refill for most households. The simple, pump-free bottle design is also easy to handle with wet hands in the shower.
The size mismatch between the full-size shampoo and the much smaller milk bottle is a frequent point of confusion, with several reviewers feeling the set isn't proportioned for equal usage. It can leave buyers with leftover shampoo and an empty milk bottle well before they're ready to repurchase both.
Travel Friendliness
79%
21%
The compact All-In-One Milk bottle is genuinely easy to slip into a toiletry bag or carry-on, making it a popular pick for frequent travelers who want a touch of salon-quality care on the go. Its multi-tasking formula also means fewer products to pack overall.
The full-size shampoo bottle is bulkier and doesn't travel quite as easily, so some users decant it into smaller containers for shorter trips. This adds an extra step that not everyone wants to deal with before a vacation.
Daily Use Comfort
82%
18%
For most hair textures, daily use doesn't seem to cause buildup or that heavy, product-laden feeling some richer shampoos create, which reviewers appreciated for quick morning showers before work. It fits naturally into an existing routine without requiring extra steps.
Those with fine hair or finer textures may need to scale back to every other day to avoid the heaviness mentioned elsewhere, which slightly limits the daily-use convenience for that group. Hair type really does shape how well this fits into an everyday routine.
Heat Protection Effectiveness
75%
25%
The All-In-One Milk's heat protectant properties were appreciated by users who blow-dry or use flat irons regularly, with several noting hair felt less crispy after styling. It's a handy bonus step for anyone who skips a dedicated protectant spray on busy mornings.
A few reviewers felt the heat protection was more of a bonus feature than a heavy-duty shield. Those using very high heat settings regularly still layered on a dedicated protectant spray for extra peace of mind.

Suitable for:

The Davines OI Shampoo and All-In-One Milk Set is a strong fit for anyone dealing with dry, frizzy, or color-treated hair that needs a real boost in softness and shine. People who already avoid sulfates but miss that satisfying lather will appreciate a formula that cleanses gently without feeling watered down. It also works well as a low-commitment way to try the broader OI line before investing in full-size bottles of everything. Frequent travelers benefit too, since the smaller milk bottle is compact enough to toss in a carry-on without taking up much space. And for those who like a multi-tasking step in their routine, the milk alone handles detangling, frizz control, and heat protection in one go.

Not suitable for:

Anyone shopping purely on price should think twice before grabbing the Davines OI Shampoo and All-In-One Milk Set, since it sits well above typical drugstore shampoo costs. Buyers with very fine or thin hair may also want to be cautious, as a few reviewers found the formula can feel slightly heavy if too much product is used. People who go through shampoo quickly and rely on the milk just as often might be frustrated, since the milk bottle is noticeably smaller and tends to run out first. Those sensitive to strong, lingering fragrances should also pause, as the scent is intentionally long-lasting and not subtle. Finally, if you are looking for a straightforward single shampoo bottle rather than a two-product set, this particular bundle may not be the most efficient way to buy.

Specifications

  • Brand: Manufactured by Davines, an Italian-based salon hair care brand.
  • Product Line: Part of the OI haircare line, known for its Roucou oil-based formulas.
  • Set Contents: Includes one OI Shampoo bottle and one OI All-In-One Milk bottle.
  • Shampoo Size: The shampoo bottle holds approximately 9.47 fl oz (280 ml).
  • Milk Size: The All-In-One Milk bottle holds approximately 1.69 fl oz (50 ml).
  • Key Ingredient: Formulated with Roucou oil, an antioxidant-rich extract used throughout the OI line.
  • Active Antioxidants: Contains beta-carotene and vitamin A to help target dullness and dryness.
  • Sulfate Content: The shampoo uses a sulfate-free cleansing base.
  • Paraben Content: The formula is paraben-free.
  • Hair Type: Suitable for all hair types, with particular benefit for dry, frizzy, or color-treated hair.
  • Texture: The shampoo has a milky-smooth consistency that rinses cleanly from hair.
  • Fragrance: Features a long-lasting scent that lingers on hair throughout the day.
  • Milk Functions: The All-In-One Milk works as a leave-in detangler, frizz-control product, and heat protectant.
  • Usage Frequency: Designed for daily use without weighing down most hair textures.

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FAQ

The Davines OI Shampoo and All-In-One Milk Set includes a full-size 9.47 fl oz bottle of OI Shampoo and a smaller 1.69 fl oz bottle of the All-In-One Milk leave-in treatment. The shampoo handles your everyday wash, while the milk is more of a styling and protection step you use afterward.

Yes, this haircare bundle uses a sulfate-free, paraben-free cleansing base, which tends to be gentler on color-treated or sensitive scalps. It still produces a soft lather, just not the super-stripping kind you get from harsher detergents.

It is formulated for daily use and generally does not weigh hair down for most textures. If you have very fine or oily-prone hair, you might find using it every other day works just as well.

It is a multi-tasking leave-in product that detangles, helps control frizz, and offers some heat protection before you blow-dry or style. Most people apply it to damp hair after toweling off.

The OI line is known for a rich, noticeable scent that lingers on hair for hours. If you usually prefer unscented or very lightly scented hair products, this might feel a bit more intense than you are used to.

It can work well, but a few reviewers with fine hair noted it can feel slightly heavy if too much is used. Starting with a smaller amount of both the shampoo and the milk is a good way to gauge how your hair responds.

The milk is a concentrated leave-in product, so a little tends to go a long way per use. That said, because it gets used in smaller amounts more frequently, many buyers find it runs out before the shampoo bottle does.

Yes, the sulfate-free formula and Roucou oil-based ingredients are designed to be gentle on color while helping maintain shine and softness over time.

That really depends on your priorities. Several repeat buyers feel the long-term improvement in hair softness and shine justifies the higher cost, especially if you are already invested in salon-grade routines, but it is a fair jump from typical drugstore pricing.

The smaller milk bottle is genuinely travel-friendly and easy to tuck into a toiletry bag. The full-size shampoo bottle is a bit bulkier, so you may want to decant some into a travel container for shorter trips.