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Overtone Cosmic Cobalt color depositing treatment mask jar with blue paste on a white background
Overtone Cosmic Cobalt color depositing treatment mask jar with blue paste on a white background

Item is in stock

Cosmic Cobalt Color Depositing Treatment Mask

previously known as Extreme Blue Coloring Conditioner

4.5
Rated 4.5 out of 5 stars
335 Reviews
Size8oz
$32.00
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$32.00
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Purchase Options
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$32.00
$32.00
each
$32.00
$32.00
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 Deliver every month
$32.00
$32.00
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 Deliver every month
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Product Details

Transform your hair with our Color Depositing Treatment Masks—the perfect way to refresh your hue while deeply nourishing every strand.

Our long-lasting, semi-permanent formula is enriched with natural oils like Jojoba and Coconut, delivering intense moisture for hair that feels irresistibly smooth, soft, and lustrously shiny. Designed for easy, failproof application, this gentle treatment helps you achieve vibrant, salon-quality results right at home.

Respecting your hair’s integrity, our non-damaging, deposit-only formula adds rich color—no bleach required. It's packed with hair-loving ingredients to keep your strands and scalp happy.

Enjoy bold, beautiful color for 2-3 weeks.*

*Individual color results may vary.

Ingredients

Ingredients: Water (Aqua, Eau), Cetearyl Alcohol, Propanediol, Behentrimonium Chloride, Aloe Barbadensis Leaf Juice, Glycerin, Hydrolyzed Pea Protein, Butyrospermum Parkii (Shea) Butter, Argania Spinosa (Argan) Kernel Oil, Cocos Nucifera (Coconut) Oil, Prunus Amygdalus Dulcis (Sweet Almond) Oil, Ricinus Communis (Castor) Seed Oil, Simmondsia Chinensis (Jojoba) Seed Oil, Mentha Spicata (Spearmint) Leaf Oil, Rosmarinus Officinalis (Rosemary) Leaf Oil, Salix Alba (Willow) Bark Extract, Equisetum Arvense (Horsetail) Extract, Guar Hydroxypropyltrimonium Chloride, Caprylic/Capric Triglyceride, Benzyl Alcohol, Cetyl Alcohol, Stearyl Alcohol, Citric Acid, Dehydroacetic Acid, Sodium Benzoate, Sodium Chloride, Sodium Salicylate, Potassium Sorbate, Carvone, Limonene, Basic Red 51, Basic Violet 2 (C.I. 42520), Basic Yellow 87, HC Blue 15, HC Blue 16.
We do our best to keep our website as up to date as possible. From time to time our formulas may change to improve performance or to meet evolving regulations. Because of this, the ingredient list shown here may differ from the ingredients on the product package you receive. For the most accurate and current information, please refer to the ingredient list on your product packaging.
How to use

With gloves, apply the Color Depositing Treatment Mask evenly to dry hair. Allow it to infuse for 10-15 minutes, embracing the transformation. Then thoroughly rinse your hair and scalp with warm water. For continually vibrant hues, make this ritual a weekly affair!

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Cosmic Cobalt Color Depositing Treatment Mask

$32.00

Styled On Instagram

SEE IT. LOVE IT. TRY IT.

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4.5
Rated 4.5 out of 5 stars
Based on 335 reviews
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335 reviews
  • DN
    Dan N.
    Verified Buyer
    Reviewing
    Cosmic Cobalt Healthy Color Duo
    I recommend this product
    Pre-Bleached? No
    Starting Shade Black
    Hair Texture Straight
    Product Standouts Vibrant Color, Easy To Use
    Age 55+
    Rated 5 out of 5 stars
    14 hours ago
    So many compliments

    I've been rocking the Cobalt Blue for a while and I get so many compliments on my hair color. I have quite a bit of white hair and while it doesn't cover the white completely, it turns it into the prettiest silver blue shade.

    Was this helpful?
    oVertone Color
    4 minutes ago

    Hi Dan! We absolutely love hearing this - you're getting compliments left and right because that Cosmic Cobalt is clearly working its magic on you! What you're describing sounds absolutely gorgeous - that silver blue transformation on white hair is honestly one of our favorite effects that Cobalt Blue creates. It's such a beautiful, sophisticated look that really makes people do a double-take in the best way possible. We're thrilled that you've been rocking this shade for a while and that it's giving you that stunning color payoff that has everyone asking about your hair. That silver blue tone you're getting is exactly the kind of beautiful result that makes us love what we do - you're absolutely nailing it with the Cosmic Cobalt!

  • RL
    rochelle l.
    Verified Buyer
    Reviewing
    Cosmic Cobalt Color Depositing Treatment Mask
    I recommend this product
    Pre-Bleached? Yes
    Starting Shade Light - Medium Blonde
    Hair Texture Curly
    Product Standouts Vibrant Color, Hydrates , Curl Friendly, Easy To Use
    Age 25-34
    Rated 5 out of 5 stars
    1 week ago
    Beautiful blue

    This color came out so well! I was really impressed with the vibrancy. Everyone says my curls have been looking healthier too, which is a good sign Overtone has a good formula. Also super easy to use!

    Was this helpful?
  • RL
    rochelle l.
    Verified Buyer
    Reviewing
    Cosmic Cobalt Color Depositing Treatment Mask
    I recommend this product
    Pre-Bleached? Yes
    Starting Shade Light - Medium Blonde
    Hair Texture Curly
    Product Standouts Vibrant Color, Hydrates , Curl Friendly, Easy To Use
    Age 25-34
    Rated 5 out of 5 stars
    1 week ago
    Beautiful blue

    This color came out so well! I was really impressed with the vibrancy. Everyone says my curls have been looking healthier too, which is a good sign Overtone has a good formula. Also super easy to use!

    Was this helpful?
  • RO
    Robin O.
    Verified Buyer
    Reviewing
    Cosmic Cobalt Healthy Color Duo
    I recommend this product
    Pre-Bleached? No
    Starting Shade Dark Blonde - Light Brown
    Hair Texture Wavy
    Product Standouts Easy To Use, Good For Brown Hair, Curl Friendly, Hydrates , Vibrant Color
    Age 35-44
    Rated 5 out of 5 stars
    3 weeks ago
    Love the color

    So easy to use and no bleaching. I don't have to destroy my hair to get the color I want. So vivid.

    Was this helpful?
  • AT
    Allison T.
    Verified Buyer
    Reviewing
    Cosmic Cobalt Color Depositing Daily Conditioner
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Worked great

    Have had mixed results with some colors but the blue works great and is very vivid

    Was this helpful?
    oVertone Color
    4 weeks ago

    Thanks for the review, Allison! We're so glad to hear that the Cosmic Cobalt worked great for you and gave you that vivid blue color you were looking for! We totally understand that different shades can perform differently depending on your hair type and starting color, so it's awesome that you found one that really delivers the results you wanted. Your feedback about the blue being particularly vivid is really helpful for other customers who are looking for that bold, eye-catching color payoff. Thanks for taking the time to share your experience with Cosmic Cobalt!

frequently asked questions

Will Cosmic Cobalt show without bleach? (HERO)

It shows best on lightened hair. On dark hair, it appears navy-toned.

Is Cosmic Cobalt very bright?

Yes, on blonde hair.

Does blue fade slowly?

Yes, blue pigments linger longer.

Will it stain?

Likely; gloves recommended.

Is Cosmic Cobalt damaging?

No.

How long does Cosmic Cobalt last?

Longer than pink shades.

Does it fade green?

It may soften toward blue-green.

Is it bold or muted?

Bold on light hair.

Will it show on black hair?

Very subtle.

How do I maintain Cosmic Cobalt?

Use a blue Daily Conditioner.

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WHAT’S INSIDE? ONLY THE GOOD STUFF.

We’re serious about what goes into our products - cruelty-free, vegan and focused on
blending performance with hair health. Because why compromise when you can have it all

INSIDE THE MASK

Where healthy hair and real color meet.

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