🌊 FREE SHIPPING on All Orders  ·  ↺ 30-Day Money-Back Guarantee  ·  🌍 2 lbs of ocean plastic removed per order        

Healthy Hair.
Healthy Ocean.

Advanced ocean-derived haircare. 2 lbs of plastic removed per order.

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⭐⭐⭐⭐⭐ 4.9/5.0 · Free Shipping · 30-Day Guarantee

32% Off
Save on the Duo
Sulfate Free
No Harsh Chemicals
30-Day
Money-Back Guarantee
Mar hero

Feel the Difference.
Make a Difference.

Healthy Hair

Healthy Hair

Our ocean-derived formulas restore strength and shine from within. No buildup, no stripping — just hair that feels genuinely healthier.

Healthy Body

Healthy Body

Most formulas are loaded with microplastics and harsh chemicals you never agreed to. Mar is clean, vegan, and free of everything that doesn't belong.

Healthy Ocean

Healthy Ocean

The ocean is the source of all life on Earth, yet most brands ignore it. Every order funds the removal of 2 lbs of ocean plastic.

Learn About Our Mission
🌊 FREE SHIPPING on All Orders  ·  ↺ 30-Day Money-Back Guarantee  ·  🌍 2 lbs of ocean plastic removed per order        
🌊 Ocean Impact Set | Free Shipping on All Orders
★★★★★ 4.9/5.0

Mar Deep Sea Duo

Advanced ocean-derived shampoo + conditioner for noticeably healthier hair.

  • 🌊 Ocean-Derived Ingredients
  • 🇺🇸 Clean, American-Made Formula
  • ♻️ Infinitely Recyclable Aluminum Bottles
  • 📦 Free Shipping on All Orders
  • ↩️ 30-Day Money-Back Guarantee
Single Shampoo
$34
Single Conditioner
$34
BEST VALUE
🔒
Double Duo Coming Soon
$136 $84 · Save $52 · Free Shipping
$136 $84

↺ 30-Day Money-Back Guarantee · Free Returns · Ships in 3–5 Days

Learn More ↓
Benefits
Promotes shine + strength · Reduces breakage · Restores scalp health · Color-safe · Deeply hydrating
Ingredients
Shampoo: Water (Aqua), Sodium Lauroyl Methyl Isethionate, Cocamidopropyl Betaine, Fucus Vesiculosus Extract, Laminaria Japonica Extract, Aqua Marina (Sea Water), Cystoseira Compressa Extract, Panthenol, Argania Spinosa Kernel Oil, Persea Gratissima (Avocado) Oil, Zea Mays (Corn) Starch, Citric Acid, Sodium Chloride, Parfum.

Conditioner: Water (Aqua), Cetearyl Alcohol, Behentrimonium Chloride, Fucus Vesiculosus Extract, Laminaria Japonica Extract, Aqua Marina (Sea Water), Panthenol, Argania Spinosa Kernel Oil, Persea Gratissima (Avocado) Oil, Citric Acid, Parfum.
Sustainability
One pound of plastic removed per bottle sold. Aluminum packaging designed for reuse, not landfill. Through our Plastic Bank partnership, every Duo set removes 2 full pounds of plastic from the world's waterways.
Shipping & Returns
Ships within 3–5 business days. Free shipping on all orders. Not happy? Our 30-day money-back guarantee means no questions asked returns.
🌊 OCEAN-DERIVED INGREDIENTS · 🌊 2 LBS PLASTIC REMOVED · 🇺🇸 MADE IN THE USA · 🌊 OCEAN-DERIVED INGREDIENTS · 🌊 2 LBS PLASTIC REMOVED · 🇺🇸 MADE IN THE USA ·

Your Hair Deserves Better.

Most shampoos strip your hair of its natural oils with harsh sulfates, clog your scalp with synthetic buildup, and come packaged in single-use plastic that ends up in the ocean. Mar was built as the answer to all three.

Mar lifestyle

The Science Is Clear

1 in 3
people say harsh shampoo chemicals are damaging their hair over time.1
10x
more microplastics enter oceans from personal care product packaging every year than previously estimated.2
1 Source    2 Source

Consumer Perception Study

Results after using Mar for 4 weeks

Mar Deep Sea Shampoo + Conditioner

98%
reported smoother hair
95%
noticed shinier looking hair
96%
report a healthier scalp
94%
hair feels less prone to breakage

Based on a consumer perception study of Mar Deep Sea Shampoo + Conditioner users after 4 weeks of use.

Transform Your Hair

The source of all life. Certified Clean Beauty.

🌊

Deep Hydration

Fucus and Laminaria extract penetrate the hair shaft to restore moisture from within. Not just surface shine.

🚫

Zero Toxins

No sulfates, parabens, phthalates, or microplastics. What's not in Mar is just as important as what is.

♻️

Aluminum Bottles

Every bottle is reusable aluminum, not single-use plastic. Better for your hair routine. Better for the ocean.

🌍

Real Ocean Impact

Through Plastic Bank, every Duo removes 2 full pounds of plastic from the world's waterways.

What's Actually Inside →

Keramere™

Vegan Keratin from Marine Brown Algae & Kelp

Hydrates and strengthens hair from within. Rich in vitamins A, C, E and B-complex. Unlike synthetic keratin, Keramere™ is 100% plant-derived and clinically studied for hair resilience.

Vegan Clinically Studied Marine-Derived

Nothing to Hide

  • Sulfates
  • Parabens
  • Phthalates
  • Microplastics
  • 100% Certified Clean Beauty

Why Mar Wins

The only hair care that's good for you and the ocean.

OLD WAY

Harsh Chemicals

  • Ocean Ingredients
  • Sulfate Free
  • Aluminum Bottle
  • Plastic Removed
  • Clean Certified
BEST CHOICE

MAR

Deep Sea Duo

  • Ocean Ingredients
  • Sulfate Free
  • Aluminum Bottle
  • 2 lbs Plastic Removed
  • Clean Certified
★★★★★

Real Results. Real Hair.

What our community is saying

Your Best Hair Starts Here.

Formulated by the ocean. Made to perform.

Get 32% Off

Free shipping · 30-day guarantee · 2 lbs of plastic removed