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"I find this conditioner absolutely fantastic. I would love to be able to get the shampoo " - Esther
Why You’ll love it
Colour Safe.
Hair will be left super-strong and silky-soft.
Penetrates the hair, guarding it from stress caused from past chemical treatments and heat damage.
Best for stressed, dull, and chemically damaged hair.
Description
Sebastian Penetraitt Conditioner is the shield your stressed, vulnerable hair needs against damage.
Designed specifically for the challenges faced by dry, colour-treated hair, Sebastian Penetraitt Conditioner offers deep moisturisation and strength restoration. This professional-grade conditioner dives deep into the hair's structure, revitalising weak strands and imbuing them with a luminous shine. Its formula is engineered not just to nourish but also to detangle, making styling a breeze while preventing further stress on your locks. Ideal for those looking to rejuvenate dull, lifeless hair, it enhances the radiance and depth of colour-treated hair, ensuring your colour looks vibrant for longer. Whether your hair is suffering from environmental stressors or the aftermath of colour treatment, Penetraitt Conditioner offers a path to recovery, leaving your hair soft, strong, and brilliantly shiny.
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Directions
How To Use Sebastian Penetraitt Conditioner
Cleanse your hair with Sebastian Penetrant Shampoo. Remove excess water from the hair. Apply through the hair, concentrating on the ends. Rinse thoroughly.
A fatty alcohol that helps soften the hair and give products a smooth, creamy texture.
May suit
People looking for conditioners or treatments that provide slip, softness and richer textures.
Worth knowing
Although called an alcohol, it is a waxy, non‑drying fatty alcohol commonly used to enhance conditioning performance and product stability.
Behentrimonium ChlorideConditioning agents
Conditioning agent
A conditioning agent that helps detangle and soften, reducing static and roughness.
May suit
Most hair types, especially tangle-prone or coarse hair.
Worth knowing
A common conditioner ingredient despite the chloride name, which simply describes its chemistry.
Cetyl AlcoholConditioning agents
Emollient and texture enhancer
Cetyl Alcohol helps soften the hair and gives products a smooth, creamy texture.
May suit
Those looking for conditioning, slip, or richer textures in their haircare products.
Worth knowing
Despite the name, fatty alcohols like cetyl alcohol are non‑drying and are commonly used to add emollience and stability to formulations.
Bis-Aminopropyl DimethiconeSilicones
Conditioning silicone
A conditioning silicone that helps smooth and soften hair while reducing frizz.
May suit
People looking for enhanced smoothness, easier detangling or frizz control.
Worth knowing
This silicone is designed to bond lightly to the hair surface, offering long-lasting conditioning benefits without heavy buildup when used within well-formulated products.
Isopropyl AlcoholSolvents
Solvent
Helps dissolve ingredients and supports quick-drying formulas.
May suit
Those using styling products that benefit from fast evaporation, such as sprays.
Worth knowing
It is commonly used at low levels to improve texture and spreadability. It evaporates quickly, leaving minimal residue on the hair.
Benzyl AlcoholPreservatives
Preservative
Helps preserve formulations and can also act as a solvent or light fragrance component.
May suit
Those interested in understanding preservative systems or identifying potential fragrance allergens.
Worth knowing
Benzyl Alcohol is commonly used in professional haircare to support product stability and texture. It can also naturally occur in some essential oils.
PhenoxyethanolPreservatives
Preservative
Helps keep the product stable and pleasant to use after opening.
May suit
All products that need protecting from spoilage.
Worth knowing
A very common, well-studied preservative used at low levels.
MethylparabenPreservatives
Preservative
Helps protect haircare products by preventing microbial spoilage.
May suit
Anyone who wants products to stay fresh and stable over time.
Worth knowing
Parabens like methylparaben are widely used because they are effective in very small amounts and have a long history of use in cosmetics. They help maintain product quality, especially in water-based formulas.
PropylparabenPreservatives
Preservative
Helps keep haircare formulas stable by preventing the growth of microbes.
May suit
Anyone using products that benefit from a long, reliable shelf life.
Worth knowing
Propylparaben is a widely used preservative that helps maintain product quality and freshness. It is used at very low levels and is well studied for its role in keeping formulations stable.
Disodium EDTAChelating agents
Chelating agent
Binds to minerals from hard water so the product works consistently and stays stable.
May suit
All products, especially in hard-water areas.
Worth knowing
Used in tiny amounts to keep formulas performing reliably.
CyclopentasiloxaneSilicones
Slip and shine agent
A lightweight silicone that spreads product evenly and gives a silky, fast-absorbing feel.
May suit
People wanting a light, non-greasy smoothing or shine finish.
Worth knowing
Often used in serums and oils for a weightless feel. Some prefer silicone-free options depending on routine.
Hexyl CinnamalFragrance ingredients
Fragrance component
A fragrance ingredient used to give products a light, floral scent.
May suit
Those who enjoy subtly scented haircare products.
Worth knowing
It is one of the fragrance components that must be listed separately when present above certain levels. People with known fragrance sensitivities may choose to monitor for it.
A synthetic fragrance ingredient used to add a fresh, floral scent to haircare products.
May suit
Those interested in identifying specific fragrance components in their products.
Worth knowing
It is one of the fragrance allergens that brands must list separately on product labels when present above certain thresholds. Its inclusion does not indicate product quality; it simply helps with transparent fragrance disclosure.
CyclotetrasiloxaneSilicones
Volatile silicone
A lightweight, fast-evaporating silicone that helps spread products smoothly and adds temporary softness.
May suit
People who prefer a lighter silicone feel or want improved spreadability without heaviness.
Worth knowing
It evaporates after application, leaving minimal residue on the hair. It is commonly used to help distribute other conditioning ingredients more evenly.
Hydrolysed SilkProteins and amino acids
Silk-derived protein
A protein derivative that helps smooth and condition the hair.
May suit
Those looking to support softness, shine, or improve the feel of damaged or dry hair.
Worth knowing
Silk proteins can temporarily coat the hair, helping it feel smoother and more manageable. They are commonly used alongside other conditioning and moisturising ingredients.
Oryza Sativa (Rice) Bran OilOils and butters
Emollient oil
A lightweight plant oil that helps condition and soften the hair.
May suit
Those seeking added softness, shine, or nourishment without a heavy feel.
Worth knowing
Rice bran oil is rich in fatty acids and antioxidants, which can support a smooth, conditioned hair feel. It is commonly used in both leave‑in and rinse‑off formulas.
Jojoba Seed OilOils and butters
Emollient oil
A lightweight plant oil that helps condition and soften the hair.
May suit
Those seeking smoother, more manageable hair or added moisture without heaviness.
Worth knowing
Jojoba oil is structurally similar to natural scalp oils, which makes it versatile in many haircare formulas. It is commonly used to enhance softness and shine.
Propylene GlycolHumectants
Humectant
Helps hold moisture and carry other ingredients through the formula.
May suit
Most hair types as part of a moisturising formula.