Skip to main content
EVOLVh SmartCurl Boost & Define Styling Foam bottle, front viewEVOLVh SmartCurl Boost & Define Styling Foam bottle, front view
Foam dispensed into hand: EVOLVh SmartCurl Boost & Define Styling Foam benefits for waves and curlsFoam dispensed into hand: EVOLVh SmartCurl Boost & Define Styling Foam benefits for waves and curls
Smiling woman with natural coily hair: EVOLVh SmartCurl Boost & Define Styling FoamSmiling woman with natural coily hair: EVOLVh SmartCurl Boost & Define Styling Foam
Chia and flaxseed: WaveMax complex in EVOLVh SmartCurl Boost & Define Styling FoamChia and flaxseed: WaveMax complex in EVOLVh SmartCurl Boost & Define Styling Foam
Founder Boris Oak quote with EVOLVh SmartCurl Boost & Define Styling FoamFounder Boris Oak quote with EVOLVh SmartCurl Boost & Define Styling Foam
Customer review with EVOLVh SmartCurl Boost & Define Styling Foam in handCustomer review with EVOLVh SmartCurl Boost & Define Styling Foam in hand
4.8 25 reviews

SmartCurl Boost & Define Foam

$24.00

This clean styling foam dials in lasting definition for waves and curls—no crunch, no buildup. Powered by breakthrough Wavemax® technology, a clinically proven chia and flaxseed complex, it enhances natural shape with soft, bouncy hold that lasts. The result? 45% more curl definition after 6 hours and 42% after 24—even in high humidity. Bonus: it also boosts volume, reduces frizz by up to 73%, and protects against heat (up to 450°F) and UV damage.

  • Enhances wave and curl definition for 24+ hours
  • Provides humidity resistance to help styles last
  • Boosts volume up to 26% without stiffness
  • Delivers flexible, long-lasting hold
  • Reduces frizz by up to 73%
  • Delivers UV and heat protection up to 450°F

Water, Polyquaternium-55, Polyimide-1, Linum Usitatissimum (Linseed) Seed Extract, Salvia Hispanica Seed Extract, Castor Oil Propanediol Esters, Ricinmus Communis (Castor Seed Oil) Xylitol, Caprylic Acid, Coco-Betaine, Sodium Benzoate, Potassium Sorbate, Dehydroacetic Acid, Benzoic Acid, Benzyl Alcohol, Tocopherol, Natural Fragrance

Alcohol free, silicone free, sulfate free, paraben free, phthalate free, synthetic fragrance free, gluten free, non-GMO and vegan

Start with 1-2 pumps of SmartCurl Foam and apply to wet hair, thoroughly massaging product from roots to ends, in sections. Increase pumps as desired for amplified results. Can be used on dry hair to revive and shape.

Yes, if you want soft definition for waves and curls without crunch or stiffness. SmartCurl Foam supports flexible hold, volume, and frizz control in humidity. Apply to wet hair in sections from roots to ends, or use on dry hair to refresh and reshape.

WaveMax™>
Castor Oil Esters (Proshine)>

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.

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.

Customer reviews

4.8 out of 5 · based on 25 reviews

  1. Great curl, smells great, good ingredients

    I love how it gives my hair great curl and it smells great!! I also love it is made with good ingredients that aren’t toxic.

    Faith G. Verified Buyer ·

  2. Hoped for more, volume but not lasting

    I was hoping for so much more. In my search for a clean curly hair mousse, I’ve tried a lot of duds. SmartCurl Boost and Define Foam felt lovely going on, and created a soft cast that was easily shaken out. It definitely helped create volume, but sadly did not hold up to even two days of wear. My fine, low density hair was frizzy and undefined. A one-step mousse or foam would be my absolute ideal, but I’m going to have to combine this with a harder hold gel to get the results I want.

    Kellie Verified Buyer ·

    EVOLVh replied: Thank you for your excellent feedback. Adding a stronghold gel just like you mentioned to further boost volume and hold is a great solution. You can also reapply SmartCurl Foam on day 2 or 3 if an extra boost is needed, it's fantastic on day 2 or 3 hair.

  3. Best product, lightweight, great light fragrance

    It’s really defines my curls! Best product, not stickey feeling at all. It’s lightweight and great light fragrance.

    Mary F. Verified Buyer ·

  4. New Smart Curl Foam

    I love this foam and these products! I have fine wavy curly hair, but a ton of it. I pair this with the dream gel for extra hold. My hair has great definition and volume and it feels so light and bouncy!

    Tracey G. Verified Buyer ·

  5. How did I live without this product? My hair looks bouncy and has a beautiful sheen. The added bonus is that there isn’t a strong scent. Curls last all day. Win!!!

    Theresa Verified Buyer ·

See all 25 reviews