Leave In Conditioner
Leave In Conditioner
Product Description
Product overview
OUAI's multitasking Leave In Conditioner is a lightweight, frizz-fighting mist by haircare brand Ouai that detangles, hydrates, and shields hair from heat damage up to 450°F/232°C. Powered by tamarind seed extract, panthenol, hydrolyzed proteins, and a blend of amino acids, it repairs dry ends, adds slip for easy combing, and leaves strands smooth, shiny, and manageable — all wrapped in the brand's beloved North Bondi scent. When used with heat, it's clinically shown to reduce hair breakage by 52%.
Heat Protection
Shields strands from thermal damage up to 450°F/232°C, reducing breakage by 52% when heat styling.
Texture & feel
SENSORYHeat Protection
Shields strands from thermal damage up to 450°F/232°C, reducing breakage by 52% when heat styling.
Weightless Hydration
Tamarind seed extract and hyaluronic acid hydrate dry ends without weighing hair down.
Effortless Detangling
Adds slip so knots and tangles comb out smoothly on wet or dry hair.
Frizz & Flyaway Control
Smooths the cuticle for shiny, manageable, frizz-free hair in any weather.
Safety & compatibility
SAFEA topical, leave-on hair product with no retinoids, salicylic acid, or known hormone-disrupting actives. Generally considered safe; consult your doctor if concerned about fragrance.
Contains plant oils, a fatty ester (myristyl myristate) and a ferment filtrate that can feed malassezia. Keep off acne-prone skin, scalp, and back.
Contains parfum plus EU-listed allergens (linalool, limonene, citral, geraniol, citronellol and more). Patch test if you have sensitive or reactive skin.
Sulfate- and paraben-free, so it's safe for color-treated, highlighted, and keratin-treated hair without stripping.
Includes cyclopentasiloxane and other conditioning silicones for slip and shine. Clarify periodically to prevent product buildup.
Not tested on animals and formulated to be reef-safe, making it a more conscious styling choice.
Ingredient breakdown
INGREDIENTSTamarind Seed Extract HeroPromising
OUAI's signature hydrating ingredient (Tamarindus Indica Extract). A plant-derived polysaccharide that coats the hair fiber to deliver weightless moisture and a smoothing, conditioning film.
- Source: Tamarind seed polysaccharides are valued in cosmetics for film-forming, moisture-retention, and smoothing properties.
- Benefit: Adds hydration and softness without heaviness — ideal for fine hair.
Panthenol (Pro-Vitamin B5) B5Proven
A humectant that penetrates the hair shaft to bind moisture, improve elasticity, and add slip for easier detangling.
- Source: Panthenol is a well-studied humectant that hydrates and conditions both skin and hair.
- Benefit: Softer, more flexible strands with reduced snapping during combing.
Hydrolyzed Pea Protein & Amino Acids ProteinProven
A blend of hydrolyzed pea protein and free amino acids (arginine, glycine, serine, proline and more) that reinforce the hair structure and help protect against breakage.
- Source: Hydrolyzed proteins and amino acids are used in haircare to strengthen fibers and improve resilience.
- Benefit: Helps the brand's claim of 52% less breakage when used with heat.
Vitamin E (Tocopheryl Acetate) Vit EProven
An antioxidant that helps protect hair and scalp from free-radical and UV-related oxidative stress while adding a nourishing, conditioning touch.
- Source: Tocopheryl acetate is a stable form of vitamin E widely used as a cosmetic antioxidant.
- Benefit: Supports shine and helps defend color and fibers against environmental damage.
Hyaluronic Acid (Sodium Hyaluronate) HAProven
A powerful humectant that draws and holds water, helping dehydrated, brittle hair feel plumper, softer, and more supple.
- Source: Sodium hyaluronate is the salt form of hyaluronic acid, prized for its water-binding capacity.
- Benefit: Long-lasting hydration that helps tame frizz caused by moisture loss.
Argan Oil (Argania Spinosa Kernel Oil) OilProven
Morocco's celebrated "liquid gold," rich in vitamin E and fatty acids that nourish, smooth, and add gloss to dry, dull strands.
- Source: Argan oil is high in tocopherols and linoleic/oleic acids that condition hair and boost shine.
- Benefit: Softens coarse texture and seals the cuticle for a glossy finish.
Baobab Seed Oil (Adansonia Digitata) OilPromising
A nourishing emollient oil rich in oleic, linoleic, and palmitic fatty acids plus vitamins A, E, and D to soften and condition dry ends.
- Source: Baobab seed oil is a fatty-acid-rich emollient used for hydration and nourishment.
- Benefit: Helps restore suppleness to brittle, over-processed hair.
Vitamin C (3-O-Ethyl Ascorbic Acid) Vit CPromising
A stable derivative of vitamin C with antioxidant properties that help defend hair from oxidative and environmental stress.
- Source: 3-O-Ethyl ascorbic acid is a more stable form of vitamin C used for its antioxidant action.
- Benefit: Adds an extra layer of antioxidant protection alongside vitamin E.
54 ingredients
Water, Cyclopentasiloxane, Cetearyl Alcohol, Quaternium-91, Parfum, Phenoxyethanol, Adansonia Digitata Seed Oil, Argania Spinosa Kernel Oil, Oenothera Biennis Oil, Tocopheryl Acetate, Hydrolyzed Rhodophyceae Extract, Tamarindus Indica Extract, Panthenol, Cetearamidoethyldiethonium Succinoyl Hydrolyzed Pea Protein, Arginine, Aspartic Acid, PCA, Glycine, Alanine, Serine, Valine, Isoleucine, Proline, Threonine, Sodium Hyaluronate, Histidine, Brassica Campestris/Aleurites Fordi Oil Copolymer, Cetrimonium Chloride, Glycerin, Dipropylene Glycol, Polysilicone-29, Behentrimonium Chloride, Myristyl Myristate, Silicone Quaternium-16, Leuconostoc/Radish Root Ferment Filtrate, Butylene Glycol, Undeceth-11, Butyloctanol, Guar Hydroxypropyltrimonium Chloride, Undeceth-5, 3-O-Ethyl Ascorbic Acid, Sodium PCA, Sodium Lactate, Phenylalanine, Disodium EDTA, Citric Acid, Citronellol, Geraniol, Alpha-Isomethyl Ionone, Cinnamyl Alcohol, Citral, Linalool, Hydroxycitronellal, Limonene.
Where it fits in your routine
ROUTINEApply to clean, damp hair after towel-drying and before heat styling. As a leave-in primer, it preps strands for blow-drying and protects against thermal damage up to 450°F.
How to use
HOW TO USECleanse & Condition
Wash and condition hair as usual, then gently squeeze out excess water and towel-dry.
Mist Evenly
Spray about 6–8 inches away, from the eyeline down, avoiding the roots. Focus on mid-lengths and ends.
Comb Through
Distribute evenly by brushing from the eyeline down with a wide-tooth comb to detangle.
Style as Usual
Air-dry or heat style. Thicker, coarser, or curlier hair can also apply on dry hair for extra hydration and flyaway control.
Who is it for?
WHOPerfect for you if:
- You heat style regularly and want reliable thermal protection
- You have frizz-prone, tangly, or unruly hair
- You want a lightweight leave-in that won't weigh hair down
- You have color- or keratin-treated hair
- You love a fresh, floral fragrance
Consider alternatives if:
- You prefer fragrance-free haircare (contains parfum + allergens)
- You have very thick, coarse hair needing rich cream or butter hydration
- You're acne-prone along the hairline or back and react to oils
- You want a fully silicone-free formula
Hair type compatibility
SKIN TYPESLightweight mist conditions and detangles without weighing hair down or leaving it greasy.
Hydrates and repairs ends, though very dry hair may want a richer cream layered on top.
Adds slip and can be applied to dry hair for extra moisture; very thick curls may need more product.
Sulfate- and paraben-free, so it's safe and protective for colored or keratin-treated hair.
Keep off the roots; ideal on mid-lengths and ends for shine without scalp buildup.
Results timeline
4 WEEKSInstant Detangling & Slip
Hair combs through easily and feels noticeably smoother and softer right away.
90%+ noticedLess Frizz & Flyaways
Daily use tames frizz, smooths the cuticle, and adds manageable shine.
78% noticedHealthier, Stronger Ends
Consistent heat protection means less breakage and fewer visible split ends over time.
65% noticedRatings by platform
5K+ REVIEWSPros & cons
BALANCEDPraised
- Excellent heat protection up to 450°F
- Lightweight — doesn't weigh hair down
- Effective detangling and frizz control
- Beloved North Bondi fragrance
- True multitasker: conditioner + heat protectant + detangler
- Color-, keratin-, and cruelty-free
Criticized
- Premium price ($32 for 4.7 oz)
- Fragrance too strong for sensitive users
- Contains silicones (potential buildup)
- Not fragrance-free / contains EU allergens
- Fine hair can be weighed down if overapplied
Budget-friendly alternatives (dupes)
DUPES
Cult 10-in-1 spray that also detangles, adds shine, and offers heat protection. A heavier feel and sweeter scent, but covers the same multitasking jobs at a lower price per ounce.
More moisture-focused and best for curly or dry hair. Great hydration and slip, but less of a lightweight heat-protectant mist than the OUAI.
Drugstore frizz-control leave-in that smooths and adds shine with silicones. Far cheaper, but without the premium amino acid, protein, and tamarind blend or signature fragrance.
Comparison with competitors
SIDE-BY-SIDE
Moroccanoil All in One Leave-In
Living Proof Leave-In Conditioning Spray
Storage & shelf life
12 MONTHS12 months after opening
Store in a cool, dry place away from direct sunlight and heat
Recyclable spray bottle with pump (recycle all except the pump)
Yes — a TSA-approved 1.5 oz mini is also available
Frequently asked questions
FAQGenerally, yes. It's a topical, leave-on hair product with no retinoids, salicylic acid, hydroquinone, or known hormone-disrupting actives. The main consideration is fragrance (parfum plus EU allergens), which sits on the hair rather than being significantly absorbed. As always, check with your doctor or midwife if you have specific concerns.
No. It contains plant oils (argan, baobab, evening primrose), a fatty ester (myristyl myristate), fatty alcohols, and a ferment filtrate — all of which can feed malassezia. If you're prone to fungal acne on your scalp, hairline, or back, apply only to mid-lengths and ends and avoid prolonged skin contact.
Yes. It's designed as a pre-styling primer — apply to damp hair before heat tools (it protects up to 450°F), then layer oils, creams, or hairspray on top. It pairs especially well with the OUAI Hair Oil for added shine.
All hair types. Fine hair benefits most from the lightweight mist applied to damp hair, while thicker, coarser, or curlier hair can also apply it to dry hair for extra hydration and flyaway control.
Immediately for detangling, slip, and softness. Frizz control and smoothness build over the first week of regular use, while reduced breakage from consistent heat protection becomes visible over several weeks.
After shampooing and conditioning, on towel-dried damp hair, and before heat styling. It's a leave-in step that primes, detangles, and protects strands ahead of blow-drying or hot tools.
It can be. It contains plant oils and myristyl myristate (a high-comedogenic ester), so it may trigger breakouts along the hairline, forehead, or back for acne-prone skin. Keep the product on your hair and avoid direct, repeated skin contact.
About 12 months (PAO). Store it in a cool, dry place away from direct sunlight and use it within a year of opening for the best performance and freshness.
Verdict: OUAI's Leave In Conditioner earns its cult status as a genuine multitasker — it detangles, fights frizz, and delivers real heat protection up to 450°F while keeping hair lightweight and shiny. The amino acid, protein, and tamarind blend is thoughtfully formulated for all hair types, and it's color-, keratin-, and cruelty-free. The trade-offs are a premium price for 4.7 oz and a bold North Bondi fragrance with multiple EU allergens, so fragrance-sensitive and fungal-acne-prone users should approach with care. For everyone else, it's an easy, do-it-all leave-in that's worth the splurge.
Product Overview
What are Quick Product Notes?
Quick product notes are a great way to check if a product is free from commonly avoided ingredients by skincare enthusiasts. These preferences come about for different reasons depending on the ingredient such as personal experiences, sensitivities, health preferences & etc.
Pro Tip Alert!
Just because a product is not free from a common preference does not mean it's a bad product! You can make a personal decision whether or not you want to use a product that contains these ingredients or not - click the labels of the preference to read more about them.
Quick Product Notes
Paraben-Free
Paraben-Free
Understanding Parabens
Parabens are a large group of preservatives which are used to prevent bacteria growing in cosmetic formulations. There has been some healthy controversy surrounding them due to a few studies finding paraben presence in breast tumours and breast tissue. However, the majority of the scientific community have deemed these findings non-conclusive due to the limitations of these studies. There's still a lot of support for avoiding parabens following the better safe than sorry route. If you do we completely support you! If you are concerned about the health safety of parabens, then feel free to avoid them by looking out for the Paraben-Free icon. If not, don't worry about it - they do have had one of the longest safety records as preservatives!
Which Ingredients are classified as Paraben?
A product will be paraben-free if it does not contain any of the following parabens:
- Sodium Isobutylparaben
- Sodium Ethylparaben
- Sodium Butylparaben
- Propylparaben
- Isopropylparaben
- Isobutylparaben
- Sodium Propylparaben
- Butylparaben
- Ethylparaben
- Sodium Methylparaben
- Methylparaben
Sulfate-Free
Sulfate-Free
Understanding Sulfates
Sulfates are a large group of ingredients which act as cleansing agents in Cosmetics. They help loosen up the dirt and grime from your skin and hair to allow for water to wash it away with ease. However some sulfates are so good at their job, they can wash off your skin’s own natural oils that keep it moisturised and protected which can lead to dryness and irritation. Most people will find no issues with sulfate, however if you find your skin doesn't like sulfates then free feel to avoid them by looking out for the sulfate-free icon on Skincarisma.
Which ingredients are classified as sulfates?
We've taken the Sulfates which are considered more harsh for our Sulfate-Free status. A product will be Sulfate-Free if it does not contain any of the following Sulfates:
- TEA-Dodecylbenzenesulfonate
- Ammonium Laureth Sulfate
- Sodium Lauryl Sulfate
- PEG-15 Cocamine
- Sodium Laureth Sulfate
- Sodium Cocoyl Sarcosinate
- Sodium C14-16 Olefin Sulfonate
- Dioctyl Sodium Sulfosuccinate
- Ammonium Xylenesulfonate
- Ammonium Lauryl Sulfate
- Sodium Xylenesulfonate
- Sodium Myreth Sulfate
- Sodium Lauryl Sulfoacetate
Alcohol-Free
Alcohol-Free
Understanding Simple Alcohols
Alcohol ingredients are widely used in cosmetics and come in different types. For the most part alcohols are not problematic at all. However one type of alcohols, simple alcohols can be quite drying to the skin because it evaporates very quickly. This can cause irritation which can also lead to other skin complications. These alcohols should never be used alone on your skin, but combined with other cosmetic ingredients, they are normally without issue. However, for some people with sensitive and easily irritable skin, avoiding products with these simple alcohols may be beneficial. If you find your skin doesn't like these simple alcohols, then free feel to avoid them by looking out for the Alcohol-Free icon.
Which Ingredients are classified as Alcohol?
A product will be alcohol-free if it does not contain any of the following alcohol ingredients:
- SD Alcohol
- Alcohol Denat
- Isopropyl Alcohol
- Alcohol
Silicone-Free
Silicone-Free
Understanding Silicones
If you've ever used a skincare, makeup or beauty product that's made your skin look and feel smoother tempoarily - it's likely contained Silicone. They are a popular class of ingredients found in cosmetics due to their smooth, soft, easy-to-spread and smooth properties that help creates an artificial layer/barrier on top of skin or hair (commonly found in conditioners).
For the same reasons they are popularly used, they are also commonly avoided. Anecdotally, many individuals have reported that Silicones cause/excerbate breakouts, irritation, cause a feeling of skin being unable to breathe, cause clumping of cosmetic products and find it difficult to wash off. As a result, those who find them problematic are avoiding them and increasingly, cosmetic companies are avoiding them as well.
If you have had bad experiences with Silicones in the past, or suspect they are problematic then look out for the tick on the Silicone-free label.
Disclaimer
The Silicone-free label only includes the most common Silicone ingredients that have indentified been reported by individuals that could potentially cause issues.
These include: Amodimethicone, Behenoxy Dimethicone, Bis-Aminopropyl Dimethicone, Cetearyl Methicone, Cetyl Dimethicone, Cyclomethicone, Cyclopentasiloxane, Dimethicone, Dimethicone Copolyol, Dimethiconol, Methicone, Phenyl Trimethicone, Phenyl Trimethicone, Stearoxy Dimethicone, Stearyl Dimethicone, Trimethylsilylamodimethicone.
Note, that this does not include all ingredients part of the Silicone class of ingredients.
EU Allergen-Free
EU Allergen-Free
Understanding the Identified Contact Allergens
The EU's Scientific Committee on Consumer Safety (SCCS) has identified and established 26 cosmetic ingredients that are likely contact allergens (potential to cause skin allergies) as demonstrated in clinical or epidemiological studies. The EU's SCCS have recommend cosmetic companies to disclose them on the labels if used and in cases where the concentration exceeds 0.001% in leave-on products and 0.01% in rinse-off products, then they must be labelled.
Look out for the tick on the EU-Allergen free label to know your cosmetic is free from any of the 26 identified cosmetic ingredients.
For more information regarding the EU's Scientific Committee on Consumer Safety, please visit their official website.
Disclaimer
The EU Allergen Free label is for the 26 ingredients identified by the EU SCCS and products will be only flagged if a suspected ingredient is on it's ingredient list. It is possible for cosmetics to contain one of the suspect ingredients without it appearing on the ingredient list due to it not reaching the concentration threshold to disclose it and cosmetic manufacturers choice to not disclose it.
Also note, the EU Allergen Free label is not personalized for your own allergies you may have and it does not constitute as medical advice. For your specific case, always consult your medical professiona such as dermatologist, physician, pharmacist, or health care provider - please read our medical disclaimer for more information.
Fungal Acne (Molassezia) Safe
Fungal Acne (Molassezia) Safe
Understanding Fungal Acne (Pityrosporum Folliculitis/Malassezia Folliculitis)
Pityrosporum Folliculitis/Malassezia folliculitis or simply known as Fungal Acne is a persistent acne-like condition that commonly responds poorly to traditional acne-treating methods. Unlike most cases of Acne where bacteria is the culprit, Fungi is the culprit of Fungal Acne (Hence the name!). There are certain classes & groups of ingredients that have been shown to promote and feed the growth of the Fungal Acne, Fungi such as fatty acids, oils, esters, polysorbates and fermented ingredients.
For more information regarding Fungal Acne, please visit Simple Skincare Science (f.c) - #3 of our Recommend Skincare Resources for an amazing comprehensive guide!
Please Read: How to use the Fungal Acne (Malassezia) Label
At SkinCarisma, we've done our best to identify as many ingredients as possible but note the fungal-free label may not be 100% accurate due to the complexconditions and combination of ingredients that malezzeria can thrive on.
Additionally, products that may contain ingredients that have shown to feed Malassezia may not neccessarily exacerbate the condition due to concentration of ingredient used in the product, this information is simply not available on the products.
As a result, please note this is only an experimental label that can be best used to possible identify problematic products you have used in the past. It is in no way a perfect identifier nor a predictor in whether or not it will exacerbate or cause fungal acne. It will continue to be worked on as more information and research comes to light.
If you find any ingredients you believe should be included, please email us at snails@skincarisma.com.
Disclaimer
Due to the lack of substantial research into this area it is very likely there are other ingredients and class/groups of ingredients that could feed Fungal Acne which have not been indentified.
The Fungal-Safe label does not constitute as medical advice. For your specific case, always consult your medical professiona such as dermatologist, physician, pharmacist, or health care provider - please read our medical disclaimer for more information.
What are Notable Effects & Ingredients?
Ever used a product that promised a certain effect but provided no results? It might not have contained any notable ingredients that could have been responsible for that promised effect. It doesn't matter what the marketing or packaging «promises» it can do, if it doesn't contain anything that can help - then the likelihood of it helping is low.
We help you identify key notable ingredients that have been shown to help with effects such as acne-fighting, brightening, UV-protection, wound healing & anti-aging to help you achieve your skincare goals smarter. Please note that different notable ingredients have varying levels of research behind them, some are extremely well proven yet some have mixed research in their efficacy.
Pro Tip Alert!
Just because a product doesn't contain any notable ingredients doesn't mean it's bad. And a product with notable ingredients (or even many) doesn't necessarily guarantee the efficacy of the product performing these effects either. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine this.
Be smart and use this as just a starting point for you to make more informed and smarter choices and compare it with reviews to see if the product is right for you
Notable Effects & Ingredients
Anti-Aging from 2 ingredient(s):
Brightening from 2 ingredient(s):
Promotes Wound Healing from 8 ingredient(s):
What are Ingredients Related to Skin Type?
Why are some products great for some people and horrible for others? Well everyone has different skin types and different reactions to the same ingredients.
We've identified a range of ingredients that are commonly regarded as potentially good or bad for those with Dry, Oily/Acne-Prone or Sensitive skin.
Pro Tip Alert!
A product that contains good or bad ingredients for your skin type doesn't always flat out make the entire product good or bad for your skin. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine your skins reaction.
One of the best ways to use this section is to troubleshoot products you've had bad experiences with in the past. Check if it contains any of the marked ingredients to point out suspect ingredients to avoid in the future!
Ingredients Related to Skin Types
Dry Skin
Oily/Acne-Prone Skin
Sensitive Skin
What is the Ingredient Safety Breakdown?
Ingredient Safety Breakdown refers to the percentage % of ingredients in different risk categories as classified by EWG (Environment Working Group) if they are available. There are almost endless cosmetic ingredients and they are one of the few organisations globally that have assigned ratings to a lot of the more commonly used ingredients which is why we reference them.
Pro Tip Alert!
EWG is seen by many to be more on the alarmist side in their assignment of health ratings resulting in rating ingredients as riskier than they actually are. We recommend using this a reference point rather than a strict guide of ingredient safety and to always do further research if into ingredients that you may find suspect.
Ingredient Safety Breakdown
Product ingredient list
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
| 1 |
Water
Solvent, Skin Conditioning
|
|
|
| 3 |
Cyclopentasiloxane
Solvent, Skin Conditioning, Emollient, Hair Conditioning
|
|
|
| 1 |
Cetearyl Alcohol
Emulsion Stabilising, Opacifying, Foam Boosting, Viscosity Increasingagent - Aqueous, Viscosity Increasing Agent, Emollient, Emulsifying, Viscosity Controlling
|
|
|
| 0 |
Quaternium-91
|
|
|
| 0 |
Parfum
Masking, Perfuming
|
|