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Product Comparison

Here's our complete breakdown comparing the ingredients, attributes, and more of Biolage Hydra Source Daily Leave-In Tonic versus REDKEN Curvaceous Ringlet .

Last updated on December 28, 2023. Published on January 12, 2024

Overview

What they are

These products are both leave-in treatments. They have a total of 9 ingredients in common

Cool Features

They both contain Vitamin E

Suited For

They're both likely to be good for brightening skin

Free From

They both do not contain any oils or sulfates

What's Inside

They both contain common allergens, fragrances and silicones

We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.

Price

Shop

Buy Hydra Source Daily Leave-In Tonic

Starts at $26.00
Shop

Buy Curvaceous Ringlet

Starts at $27.00

Ingredient Info

Click any item below to learn more and view relevant ingredients.
alcohol-free
silicon-free
fragrance-free
sulfate-free
paraben-free
oil-free
fungal-acne safe
reef-safe
eu-allergen-free
vegan
cruelty-free
alcohol-free
silicon-free
fragrance-free
sulfate-free
paraben-free
oil-free
fungal-acne safe
reef-safe
eu-allergen-free
vegan
cruelty-free

At a glance

Click on any of the items below to learn more

Notable Ingredients

Vitamin E

Benefits

Hydrating
Reduces Irritation
Anti-Aging
Scar Healing
Brightening

Concerns

Drying
May Worsen Oily Skin
Irritating (4)
Rosacea (2)
Eczema (4)

Notable Ingredients

Vitamin E

Benefits

Brightening

Concerns

Drying
May Worsen Oily Skin
Acne Trigger
Irritating
Rosacea (2)
Eczema (2)
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Ingredients Side-by-side

Ingredients that are highlighted in purple are present in both products.

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Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

1
What it does: Skin Conditioning, Solvent
Community Rating: Loved

Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.

So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.

You'll also recognize water as that liquid we all need to stay alive. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!

Learn more about Water

Biolage Hydra Source Daily Leave-In Tonic contains this as ingredient number 1.

REDKEN Curvaceous Ringlet contains this as ingredient number 1.

2
What it does: Humectant, Skin Conditioning, Solvent
Community Rating: Very Disliked

Propylene Glycol is an odorless, colorless liquid. As a humectant, it helps skin retain moisture. It also aids in delivering active ingredients.

Another role of this ingredient is preventing a product from melting or freezing. Propylene glycol also adds antimicrobrial properties to a product, elongating product lifespan.

This ingredient is considered an organic alcohol and commonly added into both cosmetics and foods.

Those with sensitive skin or conditions may deliver a rash when using this ingredient.

Learn more about Propylene Glycol

Biolage Hydra Source Daily Leave-In Tonic contains this as ingredient number 2.

REDKEN Curvaceous Ringlet contains this as ingredient number 2.

3
What it does: Preservative
Community Rating: Very Disliked

Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent germ and microbial growth. By itself, it has a scent that is similar to that of a rose.

It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.

Biolage Hydra Source Daily Leave-In Tonic contains this as ingredient number 3.

REDKEN Curvaceous Ringlet contains this as ingredient number 4.

4
What it does:

We don't have a description for Polyquaternium-11.

Biolage Hydra Source Daily Leave-In Tonic contains this as ingredient number 9.

REDKEN Curvaceous Ringlet contains this as ingredient number 5.

5
What it does: Masking, Perfuming
Community Rating: Very Disliked

Parfum is a catch-all term for an ingredient or more that is used to give aroma to products. Parfum, or fragrance, can be a blend of hundreds of chemicals or plant oils. This means every product with "fragrance" or "Parfum" in the ingredients list is a different mixture.

In the US, the alternative name for parfum is 'fragrance'. The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term.

For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance. One example is Calendula flower extract. Essential oil ingredients still impart a scent or 'fragrance'.

Depending on the blend, it can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.

Products use parfum often to give products a scent or cover up smells of different ingredients.

The bottom line is: not all fragrances/parfum/ingredients are created equally. If you are worried about fragrances, we recommend taking a closer look at an ingredient. And of course, we always recommend speaking with a professional.

Learn more about Parfum

Biolage Hydra Source Daily Leave-In Tonic contains this as ingredient number 14.

REDKEN Curvaceous Ringlet contains this as ingredient number 8.

6
What it does:
Community Rating: Disliked

Disodium EDTA plays a role in making products more stable by aiding other preservatives.

It is a chelating agent, meaning it neutralizes metal ions that may be found in a product.

Disodium EDTA is a salt of edetic acid and is found to be safe in cosmetic ingredients.

Learn more about Disodium EDTA

Biolage Hydra Source Daily Leave-In Tonic contains this as ingredient number 18.

REDKEN Curvaceous Ringlet contains this as ingredient number 17.

7
What it does: Antioxidant, Masking, Skin Conditioning
Community Rating: Liked

Tocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.

Vitamin E also helps keep your natural skin lipids healthy. Your lipid skin barrier naturally consists of lipids, ceramides, and fatty acids. Vitamin E offers extra protection for your skin’s lipid barrier, keeping your skin healthy and nourished.

Another benefit is a bit of UV protection. Vitamin E helps reduce the damage caused by UVB rays. (It should not replace your sunscreen). Combining it with Vitamin C can decrease sunburned cells and hyperpigmentation after UV exposure.

You might have noticed Vitamin E + C often paired together. This is because it is great at stabilizing Vitamin C. Using the two together helps increase the effectiveness of both ingredients.

There are often claims that Vitamin E can reduce/prevent scarring, but these claims haven't been confirmed by scientific research.

Learn more about Tocopherol

Biolage Hydra Source Daily Leave-In Tonic contains this as ingredient number 20.

REDKEN Curvaceous Ringlet contains this as ingredient number 27.

8
What it does: Perfuming
Community Rating: Very Disliked

Hexyl Cinnamal is a fragrance ingredient with a similar scent to jasmine. It can be naturally found in chamomile essential oil.

This ingredient is a known EU allergen and may sensitize the skin. The EU requires this ingredient to be listed separately on an ingredients list.

Hexyl Cinnamal is not water soluble but is soluble in oils.

Learn more about Hexyl Cinnamal

Biolage Hydra Source Daily Leave-In Tonic contains this as ingredient number 21.

REDKEN Curvaceous Ringlet contains this as ingredient number 22.

9
What it does: Perfuming
Community Rating: Very Disliked

Linalool is a fragrance and helps add scent to products. It's derived from common plants such as cinnamon, mint, citrus, and lavender.

Linalool has the same effect as Limonene when exposed to air. Oxidized linalool can cause allergies and skin sensitivity.

Linalool has a scent that is floral, spicy tropical, and citrus-like.

Learn more about Linalool

Biolage Hydra Source Daily Leave-In Tonic contains this as ingredient number 23.

REDKEN Curvaceous Ringlet contains this as ingredient number 24.

Here's what our community thinks of the ingredients in these two products.

22% are loved or liked
0% have mixed ratings
59% are disliked or very disliked
19% have no rating yet
19% are loved or liked
7% have mixed ratings
48% are disliked or very disliked
26% have no rating yet

Usage

Here's some more info on how this product is used by our community.

When to use

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Alternatives

Our Dupe Finder has found 15 potential alternatives that have similar ingredients to Biolage Hydra Source Daily Leave-In Tonic.

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Our Dupe Finder has found 3 potential alternatives that have similar ingredients to REDKEN Curvaceous Ringlet.

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