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SmartCurl Boost & Define ConditionerSmartCurl Boost & Define Conditioner
SmartCurl Boost & Define ConditionerSmartCurl Boost & Define Conditioner
SmartCurl Boost & Define ConditionerSmartCurl Boost & Define Conditioner
SmartCurl Boost & Define ConditionerSmartCurl Boost & Define Conditioner
SmartCurl Boost & Define ConditionerSmartCurl Boost & Define Conditioner
SmartCurl Boost & Define ConditionerSmartCurl Boost & Define Conditioner
SmartCurl Boost & Define ConditionerSmartCurl Boost & Define Conditioner
SmartCurl Boost & Define ConditionerSmartCurl Boost & Define Conditioner

SmartCurl Boost & Define Conditioner

$28.00

Waves and curls, meet your new bounce-back treatment. This rich, silicone-free conditioner is formulated to deliver deep moisture, long-lasting definition, and high-impact shine. Powered by a clinically backed blend of Ceramides, Creatine, and Castor Oil Esters, it helps reduce breakage by up to 3x and boost curl definition by up to 45% – all without the weight or buildup.

  • Deep moisture without weight or buildup
  • Rebuilds and strengthens hair structure from within
  • Reduces breakage by up to 3x
  • Increases shine by up to 428%
  • Boosts curl definition by up to 45%
  • Smooths frizz, even in humidity

Aqua (Water), Cetearyl Alcohol, Brassicyl Valinate Esylate, Brassicamidopropyl Dimethylamine, Diheptyl Succinate, Capryloyl Glycerin/Sebacic Acid Copolymer, Oryza Sativa (Rice) Bran Water, Castor Oil Propanediol Esters, Olea Europaea (Olive) Fruit Oil, Ricinus
Communis (Castor) Seed Oil, Polycitronellol Acetate, Lauryl Laurate, Cetyl Palmitate, Hydrolyzed Corn Starch, Creatine, Sodium PCA, Cyamopsis Tetragonoloba (Guar) Gum, Glycerin, Propanediol, Caprylhydroxamic Acid, Glyceryl Heptanoate, Ceramide NG, Ethyl Linoleate, Ethyl Oleate, Crambe Abyssinica Seed Oil, Helianthus Annuus (Sunflower) Seed Oil, Persea Gratissima (Avocado) Oil, Linum Usitatissimum (Linseed) Seed Extract, Salvia Hispanica Seed Extract, Benzyl Alcohol, Xylitol, Caprylic Acid, Citrus Paradisi (Grapefruit) Peel Oil, Hydroxypropylgluconamide, Hydroxypropylammonium Gluconate, Citric Acid

All Ingredients Non-GMO
*COSMOS Approved/Compliant

Due to innovative updates, ingredient lists on our website may occasionally differ slightly from those on product packaging or distributor sites. For the most accurate and up-to-date information, please refer to the ingredient list on the bottle.

Silicone free, paraben free, panthenol free, phthalate free, ethoxylate free, synthetic fragrance free, gluten free, non-GMO and vegan

After cleansing with SmartCurl Boost & Define Shampoo, apply to hair starting with one dime size dollop and adding more product as needed. Focus application on mid-lengths and ends, then rinse with warm water. For more intensive moisturizing, comb hair after applying for even product distribution and leave in for five minutes before rinsing. 

Creatine (Cosmo C 100)>
Castor Oil Esters (Proshine)>
Ceramide NG (Hairflux™)>
WaveMax™>
Pine Tree Terpenes (Citropol )>

Creatine (Cosmo C 100)

Your Hair's Natural Rebuilder, Activated

You've heard of creatine in the context of muscles. That's because it's one of the body's most fundamental building blocks, a naturally occurring amino acid derivative that the body uses to repair and reinforce structure under stress. Your hair works the same way. And when it's been bleached, colored, heat-styled, or chemically treated, it needs the same kind of rebuild.

What It Is
The creatine in this formula is bioidentical to the creatine your skin and scalp naturally produce. That means your hair recognizes it and knows exactly what to do with it. It's not a synthetic coating or a foreign compound. It's a molecule your hair fiber is already designed to work with, delivered in concentrated form where it's needed most.

How It Works
Creatine penetrates into the hair fiber and strengthens it from the inside by forming new electrostatic bridges between the keratin proteins that give your hair its structure. When those bonds are damaged or missing from heat and chemical exposure, creatine steps in to rebuild them.


It also raises the hair's natural resistance to heat, measurably increasing the temperature threshold at which hair proteins begin to break down. That means better protection every time a flat iron or blow dryer comes near your strands.

What the Science Shows
Tested against both a vehicle control and hydrolyzed wheat protein, creatine outperformed across every damaged hair scenario:

- 64% repair of bleached Caucasian hair, vs. 11% for the control
- 48% repair of chemically relaxed Ethnic hair, matching hydrolyzed wheat protein at a lower concentration
- 33% heat protection against flat iron damage on Asian hair, where the control offered zero protection
- Effective across all hair types, including Caucasian, Ethnic, and Asian hair in clinical testing

Clean Credentials
Creatine is one of the most body-compatible ingredients in hair care. It is identical to what the body already makes, which means it carries no risk of toxicity and works in harmony with your biology. There are no synthetic additives, no harsh processing agents, and no ingredients of concern.


Just a molecule your hair already knows, doing the work it was built to do.

Castor Oil Esters (Proshine)

The Science of Seriously Shiny Hair
Shine isn't just cosmetic. It's actually a sign of health. When a hair cuticle lies flat and smooth, light reflects evenly off it, creating that glossy, vibrant look. When it's lifted or damaged by heat, chemicals, or UV exposure, light scatters instead of reflecting, and the result is dull, flat hair.

What It Is
A 100% plant-based ester derived from castor oil, developed under Green Chemistry principles. Zero synthetic silicones. 100% biodegradable.

How It Works
ProShine® binds directly to keratin proteins inside the hair fiber, forming a uniform molecular coating with a high refractive index. Engineered to reflect light with intensity and consistency across every strand.

What the Science Shows
ProShine® was clinically tested across virgin, bleached, and color-treated hair, and the results speak clearly:

- 184% more shine on natural hair vs. placebo
- 428% more shine on bleached hair vs. placebo
- 127% shinier bleached hair vs. untreated strands
- 42% shinier color-treated hair vs. untreated strands
- Enhances the vibrancy of dyed hair, helping color look fresher for longer

These results hold across all hair types and textures, whether your hair is natural, lifted, or chemically treated.

Clean Credentials
ProShine® is derived entirely from castor, a renewable plant source, and produced under Green Chemistry guidelines. It's 100% biodegradable, contains zero synthetic silicones, and delivers real optical performance without any of the buildup or residue that traditional shine ingredients leave behind.


Brilliant hair. Clean formula. No compromise.

Ceramide NG (Hairflux™)

Hairflux™ marries the power of olives to the well known strength of ceramides (found in hair cell membrane complex and the skin barrier). It is clinically proven to protect hair from breakage and damage due to coloring, bleaching, and heat styling as well as prevent scalp inflammation and dryness. Repairs inner hair structure. Provides sun protection for both hair strands and scalp skin.

We especially love Hairflux™ for hair application as clinical trials found it reduced hair breakage by 82% and repaired the structure of bleach damaged hair by 75%.

  • Repairs inner hair structure.
  • Provides sun protection for both hair strands and scalp skin.
  • Repairs, strengthens, and prevents breakage up to 82%.

WaveMax™

Natural Definition for Waves and Curls
Most curl products deliver hold through synthetic polymers that stiffen, flake, or collapse in humidity. They force hair into a shape rather than working with it. WaveMax™ works differently: plant-derived, humidity-resistant, and built to enhance the curl pattern your hair already has.

What It Is
A 100% plant-based technology derived from flaxseed and chia, two of nature's most polysaccharide-rich seeds. Those long-chain polysaccharides have a natural bioadhesive affinity for the hair fiber, meaning they bind directly to the strand and interact with its structure rather than coating the outside. No synthetic polymers. No silicones.

How It Works
WaveMax™ bonds to keratin proteins through hydrogen bonding, the same molecular attraction that holds your hair's natural structure together. That interaction smooths the cuticle, encourages the curl or wave to form cleanly, and locks definition against humidity over time. It works with the language your hair already speaks.

What the Science Shows
WaveMax™ was clinically tested for both curl definition and frizz control, measured at multiple time points, including immediately after use and again after 24 hours of humidity exposure:

- 42% more curl definition after 24 hours vs. placebo, outperforming both benchmark competitors
- 25% frizz reduction immediately after use vs. placebo
- 73% frizz reduction after 24 hours of humidity exposure vs. placebo
- Visible cuticle improvement confirmed under Scanning Electron Microscopy, showing measurably smoother strand surfaces vs. untreated hair

Clean Credentials
WaveMax™ is derived entirely from linseed and chia seed extracts. It contains no synthetic polymers, no silicones, and no ingredients of concern. Its water-based formula is fully compatible with clean beauty standards, and its plant-based origin means it biodegrades naturally without leaving a trace in the environment.

Your curls. Nature's tools. Nothing in between.

Pine Tree Terpenes (Citropol )

Citropol
Silicone-Free. Frizz-Free. No Compromise.

For decades, silicone has been the default ingredient for smooth, manageable hair. It works by coating the strand with a synthetic film that temporarily tames frizz and adds slip. The problem? Silicones are not biodegradable; they build up on your hair over time, and they sit on a clean beauty no-fly list for good reason. Citropol is the answer the industry has been working toward.

What It Is
Citropol is a plant-derived, forest-sourced polymer made from terpenes, the naturally occurring compounds found in pine trees. It is biorenewable, 100% biodegradable, and certified to meet Forest Stewardship Council (FSC) standards. Every molecule is upcycled from a byproduct of the paper-making process, meaning nothing goes to waste. It is one of the very few ingredients that is genuinely better than silicone in both performance and sustainability.

How It Works
Citropol coats each strand with a lightweight, uniform layer that smooths the cuticle, reduces friction, and locks out humidity. Unlike silicone, which sits on top of the hair and accumulates with repeated use, Citropol integrates cleanly and leaves no heavy residue behind.


The result is hair that moves, feels natural, and stays smooth without the weight or buildup you'd expect from a conventional anti-frizz ingredient.

What the Science Shows
When tested head-to-head against a benchmark silicone, Citropol outperformed across every key hair care metric:

- 58% reduction in frizz vs. 55% for silicone, in controlled testing
- 45% less product buildup after 10 applications compared to silicone
- Heat protection up to 450°F, guarding hair from styling damage
- Humidity resistant, keeping frizz at bay even in high-moisture conditions
- Improved combability and shine, without grease or residue

Clean Credentials
Citropol carries one of the cleanest sustainability profiles of any performance hair ingredient available. It is biorenewable, biodegradable according to the OECD 301B standard, non-toxic, and non-allergenic. The terpenes it is made from are FSC-certified pine, upcycled from what would otherwise be an industrial byproduct.


No silicones. No synthetic buildup. No environmental trade-off.
Just smooth, healthy hair, straight from the forest.