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Protects against heat, UV and environmental stress
Smooths, hydrates and enhances shine
Supports long-term resilience and manageability
Ideal for
Damaged hairColoured hairBrittle hair
Benefits
RepairsStrengthensHeat protection
Description
Pure Lamellar Eternity Leave In Treatment is a restorative formula designed to deliver continuous repair and daily protection. Powered by Lamellar Sea Science Technology and Molecular Sea Amino Peptide™ repair, it works deep within the hair fibre to help restore and strengthen broken bonds while smoothing the outer layer.
The advanced leave-in formula remains active within the hair long after application. It reinforces internal structure while shielding strands from heat styling, UV exposure and environmental stress.
Lightweight yet effective, it hydrates without heaviness, enhances shine and improves overall manageability. Ideal for damaged, colour-treated or fragile hair, it helps maintain strength, softness and resilience between washes.
Results:
98% reported stronger hair from first use
92% reduction in breakage
97% noticed smoother, more manageable texture
Read more
Directions
How To Use Pure Lamellar Eternity Leave In Treatment
Complete your repair routine with an advanced leave-in that delivers continuous bond repair, protection and shine.
Apply Lamellar Eternity Leave In Treatment to clean, towel-dried hair.
Work evenly through mid-lengths and ends using fingers or a comb.
Leave in and style as desired. The formula continues to repair and protect long after application.
Ingredients
Pure Lamellar Eternity Leave In Treatment Ingredients
Water acts as the main solvent that dissolves and distributes other ingredients in a formula.
May suit
Anyone using liquid haircare products, as water is a core component.
Worth knowing
It helps create a workable texture and allows surfactants, conditioners and other actives to perform effectively.
Cetearyl AlcoholConditioning agents
Fatty alcohol conditioner
A fatty alcohol that helps soften hair and improve the texture of formulations.
May suit
People looking for smoother, more manageable hair or richer, creamier product textures.
Worth knowing
Despite the name, fatty alcohols are moisturising and conditioning rather than drying. They also help stabilise and thicken many haircare formulas.
AlcoholSolvents
Solvent and drying agent
Helps dissolve other ingredients and can aid quick drying in styling products.
May suit
Those using sprays or styling products that benefit from fast evaporation.
Worth knowing
In haircare, this typically refers to ethanol or denatured alcohol, which helps formulas feel lighter and dry faster. Its effect depends on the overall product balance and supporting conditioning ingredients.
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.
DimethiconeSilicones
Slip and shine agent
Smooths the hair surface, adds slip and shine and helps reduce frizz.
May suit
Frizz-prone, coarse or dry hair wanting a smooth, glossy finish.
Worth knowing
Some people prefer silicone-free formulas, especially for certain curl routines. It is widely used and helpful in many smoothing products.
Hydrolysed Rice ProteinProteins and amino acids
Strengthening protein
A plant-derived protein that helps reinforce and condition the hair.
May suit
People looking to support hair strength, smoothness or light-volume effects.
Worth knowing
It can help improve the feel of damaged or fine hair without the weight of some heavier proteins.
Hydrolyzed Soy ProteinProteins and amino acids
Strengthening protein
A plant-derived protein that helps support hair strength and improve the feel of damaged or processed hair.
May suit
People with weakened, chemically treated, or breakage-prone hair may appreciate its reinforcing effect.
Worth knowing
Hydrolysed proteins are broken into smaller fragments so they can more easily interact with the hair’s surface. They are commonly used alongside conditioners and humectants for a balanced feel.
AlginThickeners and stabilisers
Thickener and stabiliser
Algin helps thicken and stabilise haircare formulas for a smooth, consistent texture.
May suit
Those who prefer products with a creamy or gel-like feel.
Worth knowing
Derived from brown seaweed, algin is commonly used to give products a uniform, easy-to-apply texture. It also helps keep ingredients evenly dispersed.
GlycineProteins and amino acids
Amino acid
An amino acid that helps support hair softness and overall hair fibre condition.
May suit
Those looking to improve hair manageability or support moisture balance.
Worth knowing
Glycine is often included as part of amino acid blends used to condition and reinforce the hair fibre. It can also appear in gentle cleansing systems and care-focused formulations.
A plant-derived extract often used to help invigorate and refresh the scalp.
May suit
Those interested in lightweight botanical support for scalp comfort or hair vitality.
Worth knowing
Ginger root extract is commonly included in haircare for its stimulating and revitalising properties. It pairs well with other botanical extracts in scalp-focused formulas.
Urtica Dioica ExtractBotanical extracts
Botanical extract
A plant extract from nettle commonly used to support scalp comfort and provide light conditioning benefits.
May suit
Those looking for botanical ingredients that may help maintain a balanced scalp environment.
Worth knowing
Nettle extract is traditionally included in haircare for its soothing and invigorating properties. Its effects vary depending on formulation and concentration.
Lavandula Angustifolia ExtractBotanical extracts
Botanical extract
A plant extract from lavender used for its soothing and conditioning properties.
May suit
Those looking for botanical ingredients that support scalp comfort and light conditioning.
Worth knowing
Lavender extract is often included for its calming scent and supportive antioxidant properties. Its natural composition can vary slightly depending on how it is sourced.
A plant extract used to support scalp comfort and provide antioxidant benefits.
May suit
Those looking for botanical ingredients that can complement scalp care or add a refreshing feel to hair products.
Worth knowing
Rosemary extract is widely used in haircare for its traditional association with invigorating and clarifying routines. It appears in many formulas at varied strengths depending on the intended effect.
Thymus Vulgaris ExtractBotanical extracts
Botanical extract
A plant extract used for its refreshing, antioxidant and scalp-supportive properties.
May suit
Those looking for botanical ingredients that help keep the scalp feeling balanced and refreshed.
Worth knowing
Thyme extract is commonly included in haircare for its traditional use in scalp care and its naturally aromatic qualities. It can complement cleansing or scalp-focussed formulas.
Aloe Barbadensis Leaf ExtractBotanical extracts
Soothing botanical extract
Aloe vera extract helps hydrate and soothe the hair and scalp.
May suit
Those looking for lightweight hydration or gentle scalp comfort.
Worth knowing
Aloe extracts are widely used for their moisturising and calming properties in both hair and skin products.
A plant extract used to soothe the scalp and help condition the hair.
May suit
Those looking for gentle, plant-derived ingredients that support scalp comfort and light conditioning.
Worth knowing
Marshmallow root extract is valued for its naturally softening and calming qualities in hair and scalp products.
Prunus Armeniaca (Apricot) Fruit ExtractBotanical extracts
Botanical extract
A plant-derived extract used to help condition and soften the hair and scalp.
May suit
Those looking for gentle, plant-based ingredients that support softness and hydration.
Worth knowing
Apricot fruit extracts are commonly included in haircare for their naturally occurring sugars, vitamins and supportive antioxidant properties. They can complement both leave-in and rinse-off formulas.
Equisetum Arvense ExtractBotanical extracts
Botanical conditioning extract
A plant-derived extract used to lightly condition and support the feel of hair and scalp.
May suit
Those looking for botanical ingredients in their hair or scalp care routines.
Worth knowing
It is commonly included in formulations for its traditional association with strengthening and revitalising properties. Its benefits depend on the overall formula rather than the extract alone.
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.
Helianthus Annuus (Sunflower) Seed OilOils and butters
Emollient oil
A plant-derived oil that helps soften and condition the hair and scalp.
May suit
Those seeking lightweight natural oils for moisture, shine or scalp comfort.
Worth knowing
It is rich in fatty acids that support hair softness without feeling overly heavy. Often used as a carrier oil in both rinse-off and leave-in formulas.
PanthenolConditioning agents
Conditioning agent
Helps condition, soften and add a smooth, healthy feel to the hair.
May suit
Most hair types, especially dry or dull hair.
Worth knowing
A versatile, well-tolerated conditioning ingredient.
Tocopheryl AcetateConditioning agents
Antioxidant and conditioning support
A stable form of vitamin E used to help condition hair and support product stability.
May suit
Those looking for added conditioning support or antioxidant benefits in their haircare.
Worth knowing
It is commonly used because it is more stable than pure vitamin E while still offering similar benefits. It appears in many leave-in and rinse-off formulations.
GlycerinHumectants
Humectant
Attracts and holds water to help hair feel hydrated and soft.
May suit
Dry or dehydrated hair, and many curl and moisture routines.
Worth knowing
A very common, well-tolerated humectant used across countless products.
Cinnamidopropyltrimonium ChlorideUV filters
Hair UV protector
A conditioning UV filter that helps protect hair from sun-related colour fade and dryness.
May suit
Those with colour-treated or sun-exposed hair who want extra protection from UV damage.
Worth knowing
It offers both light conditioning and photoprotection, making it useful in leave-in and styling products. It is commonly paired with other UV filters for broader coverage.
Sodium Cocoyl Amino AcidsCleansers / surfactants
Gentle surfactant
A mild, amino acid–based surfactant that helps cleanse hair and scalp.
May suit
Those looking for a gentle or low‑foaming cleansing option.
Worth knowing
Amino acid–based surfactants are often chosen for their milder feel compared with traditional sulphates. They are commonly used in shampoos designed to maintain moisture balance.
A silicone-derived ingredient that helps condition hair and improve smoothness and manageability.
May suit
People looking for lightweight conditioning with reduced build-up compared to heavier silicones.
Worth knowing
Its structure combines silicone with panthenyl components, allowing for a softer, more flexible feel on the hair. It is often included in leave-ins and treatments to enhance slip and shine.
Cetrimonium ChlorideConditioning agents
Conditioning agent
A conditioning agent that helps smooth and soften the hair while reducing static and tangles.
May suit
People looking for improved manageability, detangling and smoother-feeling hair.
Worth knowing
It is a commonly used quaternary ammonium compound that helps conditioners spread easily through the hair. It is effective even at low levels, which is why it appears frequently in rinse-off products.
Glyceryl StearateThickeners and stabilisers
Emulsifier and texture enhancer
Helps blend oil and water and gives haircare formulas a smooth, creamy texture.
May suit
Those who like richer conditioners or masks that feel smooth and spread easily.
Worth knowing
It also offers light conditioning and can help soften the feel of hair. It is widely used in both skincare and haircare for its reliable stabilising properties.
Polyquaternium-37Conditioning agents
Film-forming conditioner
A conditioning polymer that helps smooth the hair and improve manageability.
May suit
Those looking for softer, more manageable hair or extra slip in styling products.
Worth knowing
It forms a lightweight film on the hair to reduce static and enhance glide without leaving heavy residue. It is commonly used in both rinse-off and leave-in formulas.
Hydrogenated PolydeceneConditioning agents
Emollient conditioner
A lightweight synthetic emollient that adds softness, slip and smoothness to hair.
May suit
Those looking for improved manageability and a silky feel without heavy build-up.
Worth knowing
It is often used as a silicone alternative because it provides similar slip and shine. It also helps reduce friction during styling.
Trideceth-6Cleansers / surfactants
Solubiliser / surfactant
A non-ionic surfactant that helps blend oil-soluble ingredients into water-based formulas.
May suit
Those using products with oils or silicones who want them to rinse evenly without residue.
Worth knowing
It is commonly used in shampoos and styling products to support stable, uniform textures. Its mild nature makes it suitable for a wide range of formulations.
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.
ParfumFragrance ingredients
Fragrance
Gives the product its scent.
May suit
People who enjoy a scented product.
Worth knowing
Fragrance preference is personal. Some people prefer fragrance-free formulas by choice.
Alpha-Isomethyl IononeFragrance ingredients
Fragrance component
A fragrance component with a soft, violet-like character.
Worth knowing
A fragrance component that must be listed separately on labels because a minority of people can be sensitive to it. Its presence is normal, required disclosure and is not a quality signal.
Benzyl SalicylateFragrance ingredients
Fragrance component
Benzyl Salicylate is a fragrance ingredient used to add a sweet, floral aroma to haircare products.
May suit
Those who enjoy subtly floral-scented haircare or are monitoring specific fragrance allergens.
Worth knowing
It is one of the fragrance allergens that must be listed individually on product labels when present above certain levels. Its presence does not indicate product strength or quality, only that it contributes to the overall scent profile.
CitronellolFragrance ingredients
Fragrance component
A fragrance component with a soft floral, rose-like character.
Worth knowing
A fragrance component that must be listed separately on labels because a minority of people can be sensitive to it. Its presence is normal, required disclosure and is not a quality signal.
GeraniolFragrance ingredients
Fragrance component
Geraniol is a fragrant compound that adds a light floral note to haircare products.
May suit
Those who enjoy floral-scented hair products or are checking for specific fragrance components.
Worth knowing
It is naturally found in essential oils such as rose and geranium and is commonly used to enhance scent profiles. It must be listed on labels when present above certain trace levels.
IsoeugenolFragrance ingredients
Fragrance component
Isoeugenol is a fragrance ingredient used to contribute warm, spicy notes to scented formulations.
May suit
People who enjoy richer, spicy fragrance profiles may notice its contribution to a product’s scent.
Worth knowing
It is one of the fragrance allergens that must be listed on product labels when present above certain levels. Its inclusion does not indicate a problem for most users, but those with known sensitivities may prefer to check for it.
Questions and Answers
Questions and Answers
Reviews
Customer reviews
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Susan
18 Jul 2026
This is a fabulous product but very expensive. For the cost, the size of the bottle is ridiculously expensive and really doesn’t last long. I can’t justify the price