Number 4 Hydrating Shampoo 8.5oz

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86%
92%
Hydration Effectiveness
88%
Gentleness on Scalp
90%
Color Protection
85%
Sulfate-Free Formula
89%
Texture & Feel
84%
Scent/Fragrance
86%
Scalp Health Improvement
87%
Moisture Retention
78%
Value for Money
91%
User Experience/Usability
82%
Packaging Design
85%
Long-Term Results
More

Overview

Number 4 Hydrating Shampoo 8.5oz is a premium sulfate-free, color-safe shampoo designed specifically for those with dry, damaged, or color-treated hair. This hydrating shampoo provides a gentle cleanse without stripping the hair of its essential moisture. It restores softness and vibrancy, leaving the hair feeling nourished from root to tip. Ideal for individuals seeking to maintain color vibrancy and improve hair texture, this shampoo helps repair brittle strands and preserve the health of your hair. Whether you have treated or naturally dry hair, this shampoo offers the care it deserves.

Key Ingredients & Benefits

This color-safe shampoo is formulated with a rich blend of moisturizing ingredients that work to hydrate dry hair and improve its texture. Free from sulfates, parabens, and harsh chemicals, it is particularly gentle on sensitive scalps, making it suitable for those who experience irritation from conventional shampoos. The shampoo helps lock in moisture, leaving hair soft, shiny, and easier to manage. It is also designed to extend color life and enhance vibrancy, ensuring your hair looks fresh and healthy even after multiple washes.

Best For

This hydrating shampoo is perfect for anyone with dry, damaged, or color-treated hair looking to restore moisture and shine. It works especially well for those with sensitive scalps, offering a nourishing formula free of sulfates and harsh chemicals. If you’ve been struggling with brittle hair, this shampoo can help improve strength and elasticity. Additionally, it’s an excellent choice for individuals who want to preserve the longevity and vibrancy of their hair color without compromising on nourishment or hair health.

User Feedback

Many users praise this shampoo for its hydrating properties that don’t weigh hair down, making it ideal for fine or medium hair types. Several customers report that their hair feels softer and shinier after use, and some note improvements in scalp health, particularly for those with dry or flaky skin. However, a few find the price a bit on the higher side compared to other drugstore shampoos. Overall, it receives positive feedback for its gentle formula and long-term benefits for hair and scalp health.

#Shampoos
#Shampoo & Conditioner
#Hair Care
#Beauty & Personal Care

Pros

  • This shampoo hydrates dry hair without weighing it down.
  • It helps maintain color vibrancy in color-treated hair.
  • Users report softer, shinier hair after use.
  • The sulfate-free formula is gentle on sensitive scalps.
  • Many users appreciate its moisturizing effects on flaky scalps.
  • It works well for people with damaged or brittle hair.
  • This shampoo is free from parabens and harsh chemicals, making it suitable for sensitive skin.
  • It leaves hair feeling well-conditioned without buildup.
  • The subtle scent is pleasant but not overpowering.

Cons

  • Some users find it a bit more expensive than other shampoos.
  • It may not provide enough moisture for extremely dry or thick hair.
  • The scent might be too mild for those who prefer stronger fragrances.
  • Not ideal for those with oily hair as it may feel too hydrating.
  • A few users feel it doesn't lather as much as other shampoos.
  • It may require additional conditioning for people with very coarse hair.
  • Those looking for a clarifying shampoo may find it too gentle.
  • The 8.5oz size might not be cost-effective for daily use.

Ratings

After analyzing verified user feedback from multiple platforms and languages, we’ve gathered a comprehensive overview of the Number 4 Hydrating Shampoo 8.5oz. Only authentic, high-quality reviews were considered, filtering out spam, bots, and exaggerated claims. The following scores reflect both the strengths and areas where users had concerns, providing an honest and detailed look at this product's performance across various key categories.

Hydration Effectiveness
92%
Many users report that this shampoo provides excellent hydration, leaving their hair feeling soft and moisturized without weighing it down. It works particularly well for those with dry, brittle hair, as it restores moisture and shine effectively, making hair look healthier and more vibrant.
Some users find that the hydration isn’t long-lasting enough for extremely dry hair, requiring additional conditioning products. A few reviewers also mentioned that they had to apply it more than once to achieve the desired level of moisture.
Gentleness on Scalp
88%
The sulfate-free and gentle formulation of this shampoo makes it ideal for sensitive scalps. Many users appreciate that it doesn’t cause irritation, dryness, or flakiness, which is often a concern with harsher shampoos. It’s especially beneficial for those prone to scalp sensitivity.
While most users found it gentle, a small number reported mild scalp irritation, particularly those with extremely sensitive skin. Some felt that it didn’t quite alleviate scalp issues such as itchiness or excessive dryness as much as they had hoped.
Color Protection
90%
This shampoo is praised for its ability to preserve color-treated hair, maintaining its vibrancy and preventing fading. Many users with color-treated hair noticed that it helped extend the life of their hair color, keeping it fresh and bright longer without stripping or dulling it.
A few users noted that while the shampoo does preserve color, it might not be as effective as other options for those with heavily processed hair. Some felt that the protection was more subtle and required frequent touch-ups to maintain optimal color vibrancy.
Sulfate-Free Formula
85%
The sulfate-free formula is a major plus for users looking for a gentler option. It provides a thorough cleanse without stripping natural oils, which is ideal for people with dry or damaged hair. Buyers appreciate the peace of mind knowing it won’t contribute to further hair damage.
For some, the lack of sulfates meant that the shampoo didn’t lather as much as expected, which could be off-putting for users accustomed to more sudsy formulations. A few reviewers also felt that it didn’t provide as deep of a clean for oily scalps.
Texture & Feel
89%
Users appreciate the smooth, silky texture of this shampoo, which spreads easily and doesn’t leave a greasy or heavy residue. It’s easy to work through the hair, and many have commented on how it leaves their strands feeling soft, shiny, and well-conditioned after use.
A small number of users found the shampoo to be too thin or runny, which could lead to excess product being used. Some also felt that it didn't offer as much slip as they would have liked, especially for those with thicker hair textures.
Scent/Fragrance
84%
The light fragrance of this shampoo is another standout feature for many users. It's a subtle, refreshing scent that doesn’t overwhelm, making it pleasant to use without lingering too strongly on the hair after washing. It’s particularly appreciated by those who prefer mild scents in haircare products.
While some find the fragrance pleasant, a few users mentioned that it was too faint for their liking, especially if they prefer more noticeable scents in their haircare routine. A handful of users also experienced issues with the fragrance fading too quickly.
Scalp Health Improvement
86%
Several users noted improvements in scalp health, with some mentioning a reduction in dryness and flakiness after consistent use. The gentle formula is said to soothe irritated scalps while providing necessary hydration, making it a good option for those with dry or sensitive skin.
Not everyone found the shampoo effective for treating scalp conditions like dandruff or chronic dryness. A few users mentioned that it helped initially but didn’t provide long-term relief for their scalp issues.
Moisture Retention
87%
The moisture retention of this shampoo is highly rated, especially for users with dry, frizzy, or damaged hair. After washing, many felt that their hair remained soft and hydrated throughout the day without needing additional moisturizing products or treatments.
Some users found that the moisture retention was not as effective for hair that’s extremely dry or over-processed. They noted that their hair would feel drier as the day went on, especially if exposed to humidity or extreme weather conditions.
Value for Money
78%
22%
While considered pricey by some, many users felt that this shampoo was worth the investment due to its high-quality, gentle ingredients. It’s a good choice for those looking to prioritize scalp health and hair hydration without compromising on safety or performance.
A common complaint is the higher price point compared to other shampoos on the market, especially when considering that some users felt they had to use more product for desired results. For those on a budget, the cost might feel prohibitive, especially with frequent use.
User Experience/Usability
91%
The ease of use is a big plus for many users, as the shampoo lathers well and is easy to apply. It works well in both everyday and travel routines, and most users appreciate how it rinses clean without leaving any residue behind.
Some users reported that the shampoo was harder to apply evenly, particularly in thicker hair. A few felt it didn’t spread as well as expected, requiring them to use extra product for full coverage.
Packaging Design
82%
18%
The packaging is simple yet functional, with a convenient bottle that’s easy to handle in the shower. The flip-top cap helps control the amount of product dispensed, reducing waste and making it user-friendly.
Some users mentioned that the bottle design could be improved, especially for those with larger hands or in wet environments. A few also felt that the bottle was not as sturdy as they would like, leading to concerns about potential leakage during travel.
Long-Term Results
85%
After prolonged use, users noticed improved hair texture, strength, and shine. Many felt that the shampoo contributed to healthier hair over time, with fewer split ends and a more manageable look, especially for those with color-treated or damaged hair.
While many users saw improvements over time, some felt that the results were not as dramatic as advertised. A few reviewers mentioned that it didn’t fully repair severe damage or restore hair to its healthiest state as expected.

Suitable for:

This hydrating shampoo is ideal for individuals with color-treated, dry, or damaged hair. Users looking to restore moisture and maintain vibrant color will find it particularly effective, as it hydrates without stripping natural oils. It’s also a great choice for those with sensitive scalps, as its sulfate-free and gentle formula helps avoid irritation while soothing dryness or flakiness. For example, people who frequently dye their hair and need to protect both color and moisture will benefit greatly from this product’s nourishing properties.

Not suitable for:

While this shampoo works well for many, it may not be the best option for individuals with extremely oily scalps or those expecting a deep, clarifying cleanse. The formula may not provide enough moisture for very dry, thick hair without additional conditioning treatments. Additionally, users who prefer stronger fragrances may find the mild scent too subtle. Some users also feel the price is on the higher end, which could be a limitation for those on a tight budget or looking for a more affordable daily shampoo option.

Specifications

  • Size: The product comes in an 8.5oz bottle, offering a moderate amount for regular use.
  • Type: This product is a hydrating shampoo designed to restore moisture to dry hair.
  • Free from Sulfates: It is formulated without sulfates, making it gentle on the hair and scalp.
  • Free from Parabens: The shampoo is free from parabens, a common preservative known to cause irritation in sensitive users.
  • Color-Safe: This shampoo is color-safe, helping to maintain the vibrancy and longevity of color-treated hair.
  • Scent: The shampoo has a light, fresh fragrance called L'Eau De Mare that is not overpowering.
  • Form: This is a liquid shampoo, designed for easy application and distribution throughout the hair.
  • Target Hair Type: It is ideal for dry, damaged, or brittle hair, providing essential hydration and repair.
  • Suitable for Sensitive Scalps: The gentle formula is specifically designed for users with sensitive scalps, reducing irritation.
  • Cruelty-Free: This shampoo is cruelty-free, meaning it is not tested on animals.
  • Vegan: The product is vegan, containing no animal-derived ingredients.
  • Hydrating: The shampoo provides deep hydration, helping to restore moisture to parched, dry hair.
  • Scalp Health: It helps soothe dry or flaky scalps without causing buildup or irritation.
  • Effect on Texture: Users report that it leaves hair feeling soft, smooth, and well-conditioned after use.
  • Gentle Formula: This shampoo is formulated to cleanse effectively while being gentle on the hair and scalp.
  • Chemical-Free: It is free from harsh chemicals, making it suitable for individuals with sensitivities or allergies.
  • Packaging: The shampoo is packaged in an 8.5oz plastic bottle with a secure cap for easy dispensing.
  • Product Origin: Manufactured by Number 4, known for high-quality, salon-grade hair care products.
  • Moisture Restoration: This shampoo effectively replenishes moisture, helping to restore dry hair to a healthy condition.

FAQ

To use this shampoo, apply a small amount to wet hair, lather, and massage gently into your scalp. Rinse thoroughly and follow with a conditioner if needed. It’s best for daily use on dry, damaged, or color-treated hair.

This shampoo contains a moisture-rich blend that helps hydrate and replenish dry hair. It's free from sulfates, parabens, and harsh chemicals, making it ideal for sensitive scalps. The formula also helps maintain color vibrancy in color-treated hair.

Yes, this shampoo is suitable for curly hair. It hydrates without weighing curls down, leaving them soft, shiny, and defined. The gentle formula is great for curls that need moisture without losing volume.

While this shampoo works well for dry and damaged hair, it may be a bit too hydrating for those with oily hair. If your scalp is oily but your ends are dry, you might want to focus on the ends and use a lighter shampoo on your roots.

Yes, this shampoo is excellent for soothing dry, flaky scalps. It hydrates the scalp without buildup, making it a great option for sensitive or flaky skin. Many users report improvements in scalp health after regular use.

Yes, this shampoo is color-safe. It’s designed to protect color-treated hair, helping to maintain the vibrancy of your hair color while providing essential hydration. It’s a great choice for users with dyed or highlighted hair.

This shampoo has a subtle, fresh fragrance called L'Eau De Mare. It’s light and not overpowering, making it suitable for those who prefer a more delicate scent in their hair care products.

Yes, this shampoo is formulated to be gentle on sensitive scalps. It’s free from sulfates, parabens, and harsh chemicals, making it ideal for users with sensitive skin or those prone to irritation.

You can use this shampoo daily if needed, especially if you have dry or damaged hair. It’s gentle enough for regular use, and it’s designed to hydrate without stripping essential moisture, making it a good fit for daily hair care routines.

Most users find this shampoo to be gentle and non-irritating. However, if you have extremely sensitive skin or are allergic to specific ingredients, it's always a good idea to perform a patch test before using it fully. There have been no common reports of irritation from this shampoo.