Olaplex No. 3 Plus Complete Repair Treatment

This is the main solvent and base of the formula, carrying the conditioning agents, humectants, and preservatives evenly through the product. It matters because it makes the mask/conditioner spreadable and helps the other ingredients deposit on hair.

Very low concern in normal hair-care use.

Aussi connu sous: Water

A fatty alcohol that thickens the formula and gives slip, softness, and a creamier feel. In this product it helps reduce tangling and makes hair feel smoother without the drying effect associated with simple alcohols.

Generally well tolerated; not the same as drying alcohols. Rare irritation is possible in very sensitive scalps.

very sensitive scalps

A cationic conditioning agent that helps detangle, reduce static, and improve softness. In this formula it likely helps the product coat hair evenly and improve combability, especially on dry or damaged hair.

Generally considered safe in rinse-off or leave-on hair products at typical use levels, though it can irritate very sensitive skin or eyes. Evidence is well-established for conditioning use.

very sensitive scalps

Aussi connu sous: BTMS

A bond-supporting hair-care active used to help reduce breakage and improve the feel of damaged hair. Practically, users with bleached, colored, or heat-stressed hair may notice better strength and less roughness over time.

Generally well tolerated in hair products; scalp irritation is uncommon but possible in very sensitive users. Evidence is emerging-to-established for bond-building claims, but product performance depends on the full formula.

very sensitive scalps

Aussi connu sous: bond builder

A thickener and texture modifier that helps stabilize the cream and improve spreadability. It matters because it gives the product body without making it feel overly greasy.

Low concern in normal use.

A humectant and solvent that helps retain moisture and improve ingredient delivery. In hair care it can reduce dryness and support a smoother feel without the stickiness of some other humectants.

Generally well tolerated; mild irritation is possible on compromised skin.

very sensitive scalps

Aussi connu sous: 1,3-Propanediol

A conditioning surfactant that improves slip, detangling, and anti-static performance. It is especially useful for coarse, curly, or damaged hair that needs more combability.

Generally safe in hair products, but quaternary conditioners can irritate very sensitive scalps or eyes.

very sensitive scalps

A classic humectant that attracts water and helps hair feel more hydrated. In this product it can improve softness and reduce the dry, rough feel of damaged hair.

Very safe for most users, though in very humid or very dry conditions it can sometimes affect frizz behavior depending on the full formula.

frizz-prone hair in extreme humidity or dryness

Aussi connu sous: Glycerol

A strong conditioning surfactant that helps detangle, smooth, and reduce static. It is useful for making hair easier to comb and less prone to breakage from mechanical stress.

Generally safe in hair conditioners, but it can be irritating to very sensitive skin or eyes at higher use levels.

very sensitive scalps

A fatty alcohol that thickens and softens the formula while improving slip on hair. It helps the product feel richer and can reduce the roughness of dry strands.

Low irritation risk for most users; not a drying alcohol.

A fatty alcohol used to add body, richness, and a smoother after-feel. It can help coarse or dry hair feel less rough and more manageable.

Generally safe; the comedogenic note matters more for skin than hair, but very oily scalps may dislike heavy emollients.

oily or acne-prone scalps

Aussi connu sous: Octadecanol

A plant extract often used for film-forming or conditioning support. In this formula it likely helps with slip, feel, or moisture retention, though the exact effect depends on the extract standardization.

Usually low concern, but botanical extracts can occasionally irritate sensitive users. Evidence for specific hair benefits is limited and formula-dependent.

botanical-sensitive users

Aussi connu sous: tara extract

A pro-vitamin B5 humectant that helps hair feel softer, smoother, and less brittle. It is especially useful for dry or damaged hair because it can improve flexibility and reduce the rough feel of the fiber.

Generally very well tolerated; occasional irritation is uncommon.

Aussi connu sous: Provitamin B5

An emollient butter that helps seal in softness and reduce the dry, rough feel of hair. It is most helpful for thick, coarse, curly, or very dry hair that benefits from richer lubrication.

Generally safe, but it can feel heavy and may weigh down fine hair. The comedogenic note is mainly relevant if it contacts an acne-prone scalp or skin.

fine hair or oily/acne-prone scalps

Aussi connu sous: Shea Butter

A lightweight plant oil used to add slip, shine, and a smoother feel without the heaviness of some richer oils. It can be useful for dry or frizzy hair that needs lubrication but not a very greasy finish.

Generally safe; low irritation risk. Evidence for special hair benefits is mostly practical/formulation-based rather than strongly clinical.

very fine hair if overused

Aussi connu sous: abyssinian oil

A botanical extract that may provide antioxidant or soothing support, depending on how it was prepared. In hair products it is usually a minor supportive ingredient rather than a primary conditioner.

Usually low concern, though botanical extracts can occasionally trigger sensitivity in reactive users. Evidence for direct hair benefits is limited.

botanical-sensitive users

Aussi connu sous: sunflower extract

A richer emollient oil that helps soften hair and reduce dryness. It is most useful for coarse, porous, or damaged hair that needs more lubrication and shine.

Generally safe, but it can be heavy for fine hair and may contribute to buildup if used frequently.

fine hair or oily scalps

Aussi connu sous: Avocado Oil

An oil that can reduce protein loss from hair and improve softness and shine. It is often helpful for dry, porous, or damaged hair, though it can feel heavy on some hair types.

Generally safe; may weigh down fine hair or contribute to buildup. The comedogenic note matters if it contacts acne-prone skin.

fine hair or acne-prone scalps

Aussi connu sous: Coconut Oil

A lightweight emollient oil that helps smooth the cuticle and add shine. It is useful when the goal is softness without an overly greasy finish.

Generally safe and low irritation risk.

very fine hair if overapplied

Aussi connu sous: Sunflower Seed Oil

A cationic conditioning ingredient used to improve detangling, softness, and anti-static performance. In this formula it likely helps the product deposit evenly on hair and enhance combability.

Generally safe in hair conditioners, but quaternary compounds can irritate very sensitive scalps or eyes. Evidence is well-established for conditioning use.

very sensitive scalps

A plant extract that may contribute antioxidant support or a light conditioning feel. In hair care it is usually a secondary ingredient rather than a major treatment active.

Usually low concern, but botanical extracts can occasionally bother sensitive users. Evidence for strong hair-specific effects is limited.

botanical-sensitive users

Aussi connu sous: rice bran extract

This ingredient name is incomplete on its own, so the exact function is uncertain. In a hair formula it may be part of a caprylic-derived emollient or solvent system that supports texture or spreadability.

Because the ingredient is incomplete, the exact safety profile cannot be pinned down from the name alone. In general, caprylic-derived cosmetic ingredients are often low concern, but this should be interpreted cautiously.

A lightweight emollient that helps soften hair and improve spreadability. It can make the product feel less greasy while still adding lubrication and shine.

Generally very well tolerated and low irritation risk.

fine hair if overused

Aussi connu sous: Caprylic/Capric Triglyceride

A preservative booster and mild humectant that helps keep the formula microbiologically stable. It can also contribute a small amount of skin-conditioning feel.

Generally safe, though it can irritate very sensitive skin in some formulas. Evidence is well-established for preservative support.

very sensitive scalps

A cationic guar polymer that improves slip, detangling, and wet combing. It matters because it helps hair feel smoother and reduces friction during styling.

Generally safe; occasional irritation is possible in very sensitive users. Evidence is well-established for conditioning and feel improvement.

very sensitive scalps

Aussi connu sous: cationic guar

A botanical extract often used for antioxidant or scalp-care positioning, and sometimes for fragrance-like herbal character. In this product it is likely a minor supportive ingredient rather than a primary treatment.

Generally safe, but rosemary-derived ingredients can irritate sensitive skin and may be problematic for fragrance-reactive users. Evidence for hair-growth claims is limited and not definitive.

fragrance-sensitive or reactive scalps

Aussi connu sous: Rosemary Extract

An antioxidant that helps protect oils in the formula from oxidation. In hair care it mainly supports product stability and can offer a small antioxidant benefit to the formula.

Generally safe and well tolerated.

Aussi connu sous: Vitamin E

A plant extract likely included for antioxidant or marketing support. Its practical effect on hair is probably minor at this position in the formula.

Usually low concern, though botanical extracts can occasionally bother sensitive users. Evidence for direct hair benefit is limited.

botanical-sensitive users

Aussi connu sous: sunflower sprout extract

A humectant and preservative booster that helps maintain moisture and support preservation. In hair products it can also slightly improve slip and feel.

Generally safe; mild irritation is possible in very sensitive skin.

very sensitive scalps

A conditioning surfactant that improves detangling, static control, and softness. It is especially useful for making hair easier to comb after washing or styling.

Use caution if you have a very sensitive scalp or if the product is left on the skin for long periods; it can be irritating at higher levels. Evidence is well-established for conditioning use.

very sensitive scalps

Aussi connu sous: CTAC

A natural moisturizing factor component that helps hair retain water and feel less dry. It is useful for improving softness without adding much weight.

Very low concern in normal use.

A polymeric fatty acid used as a dispersing or stabilizing ingredient in some formulas. In this product it likely helps keep the emulsion or any suspended materials uniform.

Generally low concern in cosmetic use.

A film-forming polymer that can improve feel, smoothness, and product stability. In hair care it may help create a light coating that reduces frizz and improves slip.

Generally safe in cosmetic use; irritation is uncommon.

An emollient ester derived from linoleic acid that can add slip and a lighter oily feel. It may help soften hair without the heaviness of some richer oils.

Generally low concern; irritation is uncommon.

fine hair if overapplied

A lightweight emollient ester that can improve spreadability and softness. In hair products it helps reduce roughness and can make the formula feel less waxy.

Generally low concern in normal cosmetic use.

fine hair if overused

A cationic conditioning ingredient likely used to improve detangling and softness. It probably contributes to the overall smoothing system in combination with the other quaternary conditioners.

Generally safe in hair products, though quats can irritate very sensitive scalps or eyes. Evidence is well-established for conditioning use.

very sensitive scalps

A fast-evaporating solvent that can help dissolve ingredients and speed drying. In hair products it may improve application or drying time, but it can also make the formula feel more drying if present at meaningful levels.

Use caution on dry, damaged, or sensitive scalps; it can be drying or irritating. This is a well-established concern for leave-on products, less so for brief-contact use.

dry or sensitive scalps

Aussi connu sous: isopropanol

A humectant and solvent that helps retain moisture and dissolve ingredients. In hair care it can support softness and product performance, especially in water-based formulas.

Generally safe, but it is a known irritant for some sensitive users and can sting compromised skin. Evidence is well-established for both utility and occasional irritation potential.

very sensitive scalps

Aussi connu sous: 1,2-Propanediol

A lightweight emollient that gives slip and a silky, non-greasy feel. It is useful for reducing drag on hair and improving the sensory finish of the product.

Generally very well tolerated and low irritation risk.

fine hair if overapplied

A conditioning polymer that improves wet combing, slip, and anti-static performance. It helps hair feel less tangled and more manageable after washing.

Generally safe; occasional buildup or mild irritation can occur in sensitive users depending on the formula.

fine hair or buildup-prone hair

Aussi connu sous: Guar HTCl

An antioxidant used to protect oils and fragrance components from oxidation. In this product it mainly helps preserve formula quality and shelf life.

Generally safe at cosmetic use levels.

A cationic polymer used to improve conditioning, slip, and film formation. In this formula it likely helps hair feel smoother and easier to detangle.

Generally safe in cosmetic use, though sensitive scalps may react to some conditioning polymers. Evidence is well-established for cosmetic conditioning performance.

very sensitive scalps

A film-forming polymer that helps with hold, texture, and product stability. In hair care it can improve the way the product coats strands and may reduce frizz or flyaways.

Generally safe in finished cosmetics; the ingredient name can sound alarming, but the polymer itself is used at low levels and is regulated for impurity control. Evidence is well-established for cosmetic film-forming use.

A fragrance-related solvent/emollient that can also help dissolve aromatic materials. In hair products it usually contributes to scent and a smoother sensory feel.

Generally safe, but fragrance-associated ingredients can bother sensitive or fragrance-reactive users. Evidence is routine rather than exceptional.

fragrance-sensitive users

An antioxidant/reducing agent used to help protect the formula from oxidation and discoloration. It can also support stability of sensitive ingredients.

Generally safe at low cosmetic levels, but sulfite-sensitive individuals may react. Evidence is well-established for preservative/antioxidant support.

sulfite-sensitive users

Aussi connu sous: bisulfite

A chelating agent that binds metal ions and helps preserve formula performance. It can improve stability, especially in hard water or metal-contaminated systems.

Generally low concern in cosmetic use.

Aussi connu sous: EDDS

A reducing agent and antioxidant used to protect the formula from oxidation and color change. It helps maintain product quality over shelf life.

Generally safe at low levels, but sulfite-sensitive users should be cautious. Evidence is well-established for this stabilizing role.

sulfite-sensitive users

Aussi connu sous: metabisulfite

An acid used to adjust pH so the formula is hair-friendly and the cuticle feels smoother. Proper pH can improve shine, reduce roughness, and support preservative performance.

Generally safe, but it can sting irritated skin or eyes if the formula is too acidic. Evidence is well-established for pH adjustment.

very sensitive or irritated scalps

Aussi connu sous: Vitamin C Acid

A preservative that helps prevent microbial growth in the product. It matters because it keeps the formula safe and usable over time.

Generally safe at allowed cosmetic levels, though it can irritate very sensitive skin or eyes. Evidence is well-established.

very sensitive scalps

A preservative that helps inhibit microbial growth, especially in water-based formulas. It supports product safety and shelf life.

Generally safe at cosmetic use levels; irritation is uncommon but possible in very sensitive users. Evidence is well-established.

very sensitive scalps

Added to give the product a pleasant scent and mask raw material odors. It mainly affects user experience rather than hair performance.

Fragrance is a common trigger for irritation or allergy in sensitive users; caution is appropriate, especially for leave-on products. Evidence for irritation risk is well-established.

fragrance-sensitive users

Aussi connu sous: Fragrance

A fragrance component that contributes a floral-lavender scent profile. It does not condition hair, but it shapes the product’s smell and perceived luxury.

Generally safe at low levels, but it is a fragrance allergen for some people. Evidence for sensitization risk is well-established.

fragrance-sensitive users

A fragrance component that adds a floral, fresh scent. It mainly affects odor and can also be present as an oxidation-sensitive allergen in scented products.

Caution for fragrance-sensitive users; oxidized linalool is a well-known allergen. Evidence for sensitization is well-established.

fragrance-sensitive users

A fragrance ingredient used for a lily-of-the-valley style scent note. It contributes to the product’s fragrance profile rather than hair conditioning.

Generally safe at low levels, but it is a recognized fragrance allergen. Evidence for sensitization risk is well-established.

fragrance-sensitive users

A fragrance ingredient that adds a violet-like, powdery scent note. It is included for sensory appeal rather than treatment effect.

Caution for fragrance-sensitive users; it is a recognized allergen. Evidence for sensitization risk is well-established.

fragrance-sensitive users

A fragrance component with a rosy, citrus-floral scent. It mainly improves the smell of the product.

Generally safe at low levels, but it is a fragrance allergen for some users. Evidence for sensitization risk is well-established.

fragrance-sensitive users

Aussi connu sous: Citronellol

A colorant used to give the product a yellow hue and improve appearance. It does not meaningfully condition hair.

Generally safe in cosmetic use; rare sensitivity can occur, but it is uncommon.

Aussi connu sous: Yellow 5

A colorant used to adjust the product’s yellow color and visual consistency. It is mainly for appearance and branding.

Generally safe in cosmetic use; rare sensitivity is possible but uncommon.

Aussi connu sous: Yellow 6