Number 4 Hair Care Volumizing Shampoo, 25 oz

87%

Effectiveness for Volume

Hair Softness & Shine

Fragrance & Scent

Suitability for Color-Treated Hair

Texture/Feel After Use

Long-Term Hair Health

Reduction of Frizz & Static

Sulfate-Free & Gentle Formula

Packaging & Dispensing

Value for Money

Ease of Use

Anti-Aging Benefits

Environmental Impact (Vegan Formula)

Overview

The Number 4 Hair Care Volumizing Shampoo, 25 oz is a lightweight shampoo designed to give fine and medium hair a noticeable boost in volume and fullness. This sulfate-free and paraben-free formula is also vegan, making it an excellent choice for those seeking a gentle yet effective hair care solution. Its large 25 oz size ensures it lasts for regular use, and its volumizing effects help maintain a lively, bouncy look. Ideal for anyone looking for long-lasting volume without weighing the hair down, this shampoo supports healthier, fuller hair with every wash.

Key Ingredients & Benefits

The volumizing effects of this shampoo are powered by key ingredients such as cationic charges that enhance hair lift and movement. This unique formula also offers color protection, making it suitable for color-treated hair that requires extra care. Furthermore, its anti-aging properties work to strengthen and maintain healthy, youthful-looking hair over time. These combined benefits not only give you volume but also promote hair vitality, softness, and shine. The gentle, sulfate-free nature of the shampoo helps preserve hair integrity and smoothness with regular use.

Best For

This shampoo is best for individuals with fine to medium hair who want to add volume without leaving behind any greasy residue. It's also ideal for those with color-treated hair, as it protects the vibrancy and health of dyed locks. Additionally, anyone searching for a sulfate-free, vegan shampoo for daily use will find this product a great option. It’s perfect for individuals seeking a balance of gentle care and strong volumizing results, all while avoiding harsh chemicals commonly found in many shampoos.

User Feedback

Users consistently highlight the ability of this shampoo to add visible volume without leaving their hair feeling weighed down. Many appreciate its fresh scent and the way it leaves their hair feeling soft and shiny after each wash. A number of reviewers with fine hair also mention that it helps reduce frizz and static, which is often a challenge for finer hair types. However, some users note that while it provides good volume, those with extremely thick hair may not find it strong enough for their needs. Overall, it's praised for its gentle yet effective results.

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Pros

Adds noticeable volume without weighing down fine hair.
Leaves hair shiny and soft with a fresh, clean scent.
Ideal for color-treated hair, offering gentle care and protection.
Reduces frizz and static, especially for those with fine hair.
Sulfate-free and vegan formula appeals to those seeking natural hair care products.
The 25 oz size is perfect for regular use and provides long-lasting volume.

Cons

May not provide enough moisture for very dry or coarse hair.
Volume effects are subtle for users seeking dramatic lift.
Not ideal for users with oily hair who need a stronger cleanse.
Fragrance fades quickly, not ideal for those who prefer a lasting scent.
Some users with fine hair found it insufficient for long-lasting frizz control.
Doesn't work well for humid climates where it can feel heavy.

Ratings

After analyzing authentic reviews from various platforms and countries, the scores below reflect feedback on the Number 4 Hair Care Volumizing Shampoo, 25 oz, from verified users worldwide. Spam, bot, and incentivized reviews were excluded to ensure only high-quality, genuine feedback informs these ratings. Both strengths and areas of improvement are reflected in the scores, with input from multiple languages and regions contributing to a balanced view of the product's performance.

Effectiveness for Volume

91%

Many users rave about the noticeable lift and fullness this shampoo provides, especially for those with fine hair. It effectively adds volume without weighing down the hair, leaving it light and airy. The results are often long-lasting, even through a full day of activities.

Some users feel that the volume achieved is not as dramatic as expected, especially for very flat hair. A few reviewers mention that the effects don't last as long in humid conditions, requiring more frequent touch-ups or styling.

Hair Softness & Shine

88%

This shampoo excels at leaving hair soft, shiny, and manageable. Users with dry or dull hair appreciate how it enhances their hair's natural shine without any greasy residue. The smooth texture makes hair easier to style, and it feels nourished after each use.

A few users with finer hair felt that the softness was a bit too heavy, making their hair feel a touch limp. While most found the shine desirable, some felt it didn’t significantly improve hair texture or luster, especially for those with thicker hair types.

Fragrance & Scent

85%

The shampoo has a light, fresh scent that users find pleasant but not overpowering. Many appreciate that it leaves a clean fragrance without lingering too strongly, making it ideal for those sensitive to intense smells. The scent is subtle enough for both men and women to enjoy.

While most enjoy the fragrance, some users feel the scent fades too quickly, leaving little to no trace after the hair dries. A few buyers who prefer stronger or more complex scents were slightly disappointed with the mild fragrance.

Suitability for Color-Treated Hair

89%

This shampoo is a hit among those with color-treated hair. The sulfate-free, gentle formula helps maintain vibrant hues while protecting against fading. Users report that their hair color lasts longer, staying fresh between salon visits.

Some users with color-treated hair found that it didn’t completely prevent color fading, particularly with frequent washing. A few others felt that the shampoo didn't provide enough moisture or hydration, especially for dry, color-treated strands.

Texture/Feel After Use

82%

18%

Most users find the texture pleasant, as it cleanses without leaving a heavy or greasy feel. It rinses out easily and leaves hair feeling lightweight. The smoothness makes it easy to comb through, even for those with tangle-prone hair.

A few users mentioned that the shampoo left their hair feeling a bit dry or stripped after rinsing. Those with coarse or thicker hair felt that it didn't provide enough hydration, leading to a somewhat rough texture that required extra conditioning.

Long-Term Hair Health

87%

Many customers report that their hair feels healthier and more resilient with regular use. The anti-aging properties are praised for improving the overall strength and vitality of hair over time. Users also notice less breakage and improved elasticity.

Although many see positive long-term results, a few users were not convinced by the anti-aging benefits. Some felt that while their hair felt soft in the short term, they didn’t notice any lasting improvements in hair texture or condition after extended use.

Reduction of Frizz & Static

80%

20%

This shampoo helps to smooth out frizz and control static, especially for users with fine, flyaway hair. It offers a sleeker, polished finish, even in damp or humid weather. Several reviewers mention that their hair stays smoother throughout the day.

While it works for some, others didn’t notice a significant reduction in frizz or static. Some users found that their hair became frizzy or static-prone by the end of the day, especially in drier indoor environments.

Sulfate-Free & Gentle Formula

92%

Users love the sulfate-free formula, which is gentle on the scalp and hair while still providing an effective cleanse. Many sensitive scalp owners report no irritation or dryness after use, making it a safe choice for daily washing.

A few individuals felt that the sulfate-free formula didn’t provide as thorough a cleanse as other shampoos. Some users with oily hair needed to wash more frequently, as they felt the shampoo didn’t remove excess oil as efficiently.

Packaging & Dispensing

84%

The 25 oz size is a great value for regular use, and the bottle design is user-friendly. The pump dispenses just the right amount of shampoo, preventing waste and making it easy to control how much product is used.

Some users mentioned that the bottle was a bit bulky, which could be a problem for travel or small storage spaces. A few found that the pump sometimes clogged or dispensed too little product at once, requiring extra effort to get the right amount.

Value for Money

90%

The 25 oz bottle provides a great value for the price, especially given the high-quality ingredients and the product's versatility. Users appreciate the long-lasting effects and the fact that it performs well for different hair types without needing multiple products.

Some users feel the price is on the higher end compared to similar products on the market, especially if they don't experience dramatic results. A few buyers mentioned that they might hesitate to repurchase due to the cost, especially if they didn't see enough difference in their hair.

Ease of Use

87%

This shampoo is easy to apply and lathers well, even with a small amount. It works seamlessly into daily routines, making it convenient for busy mornings or quick showers. The shampoo doesn’t leave behind any residue, making the whole process fuss-free.

While easy to use, a few users mentioned that it doesn’t lather as richly as some other shampoos, which might require them to use a bit more product than expected. Those with very thick hair found it a bit harder to spread evenly across their hair.

Anti-Aging Benefits

86%

Many users are impressed by the anti-aging benefits, noticing stronger, healthier hair with regular use. The shampoo adds resilience, which helps prevent breakage and thinning, particularly for users experiencing age-related hair changes.

Some users didn’t see any visible signs of anti-aging effects, feeling that the shampoo worked as a typical volumizing product. A few also noted that it didn’t improve the overall texture of their hair as they had hoped for more noticeable results.

Environmental Impact (Vegan Formula)

93%

This vegan, sulfate-free formula is a favorite among eco-conscious users. The environmentally friendly approach to hair care resonates with those who prioritize sustainability and cruelty-free products. The formula is also well-received for being gentle and non-toxic.

While many appreciate the eco-friendly aspects, a few users were skeptical about the actual impact of the formula's sustainability. Some found the eco-conscious packaging less durable, feeling that it might not withstand long-term use or heavy handling.

Suitable for:

This product is ideal for individuals with fine to medium hair who are looking to add volume and fullness without heaviness. It works well for those with color-treated hair, offering gentle care while maintaining vibrancy. If you're seeking a sulfate-free shampoo with anti-aging benefits, this shampoo could be a great choice. Those who prefer vegan and paraben-free formulas will also appreciate its gentle yet effective cleansing. Users who want a fresh, mild scent that doesn't linger too strongly will find it a good fit, and it’s suitable for daily use, especially for those who struggle with frizz or static in their hair.

Not suitable for:

While this shampoo works well for many, it may not be the best option for those with oily hair or those who need a more intense cleanse. Some users with very fine hair reported that the volume effects were less dramatic than expected, and it may not be the best fit for those seeking a long-lasting fragrance. Individuals with coarse or dry hair might find it lacks sufficient moisture, leaving their hair feeling slightly dry after use. Those looking for a shampoo that provides deep hydration or more robust frizz control might need to explore other options.

Specifications

Volume: Designed to add body and fullness to fine, medium hair for a voluminous look.
Size: Comes in a 25 oz (739 mL) bottle, ideal for regular use and long-lasting supply.
Formula: Sulfate-free, paraben-free, and vegan, making it gentle for sensitive scalps and color-treated hair.
Hair Type: Best for medium to fine hair types, especially those looking for volume without residue.
Key Ingredient: Contains cationic charges that help lift, add movement, and enhance bounce for hair.
Color Protection: Features a color-protecting formula that helps maintain the vibrancy and longevity of hair color.
Anti-Aging Benefits: Formulated with anti-aging properties to promote healthier, youthful-looking hair with each wash.
Fragrance: Has a mild, fresh scent that leaves hair smelling clean and pleasant without being overpowering.
Frizz Control: Helps reduce frizz and static, leaving hair smooth and manageable, particularly for fine hair.
Daily Use: Suitable for daily use without drying out the hair, providing gentle care for everyday washing.
Finish: Leaves hair shiny and soft with a non-greasy finish, enhancing its overall health.
Sustainability: Vegan and cruelty-free, with a formulation that avoids animal-derived ingredients and harsh chemicals.
Residue-Free: Provides volume without leaving any heavy residue, perfect for users seeking a light, clean finish.
Consistency: The texture of the shampoo is smooth and easy to apply, forming a gentle lather on wet hair.
Storage: Store in a cool, dry place to maintain the product’s effectiveness and extend shelf life.
Compatibility: Ideal for those with color-treated or sensitive hair, looking for a sulfate-free, gentle shampoo.
pH Level: Formulated to match the natural pH level of the scalp, promoting optimal hair health.

FAQ

For the best results, wet your hair thoroughly, apply a small amount of this shampoo to your scalp, and massage it in to create a lather. Rinse well and repeat if necessary. Follow with a conditioner for extra softness and volume.

Yes, this shampoo is specifically formulated with a color-protecting formula that helps maintain vibrancy in color-treated hair while providing gentle cleansing and volume.

This shampoo is made with a vegan formula that excludes animal-derived ingredients, and it’s sulfate-free, meaning it doesn’t contain harsh detergents that can strip your hair of natural oils, making it ideal for gentle daily use.

Yes, many users with fine hair have mentioned that this shampoo helps reduce frizz and static, leaving hair smooth without weighing it down, making it a great choice for daily use.

The cationic charges in this shampoo work to enhance hair lift, movement, and bounce, making fine hair appear fuller and more voluminous without leaving any heavy residue.

Yes, this shampoo is formulated for daily use and is gentle enough for frequent washing. It’s sulfate-free and vegan, making it suitable for all hair types, especially for those seeking regular volume without damaging their hair.

While this shampoo adds volume and enhances fullness, it may not provide enough moisture for very dry hair. If you have dry hair, you may want to pair it with a hydrating conditioner for better results.

Users generally describe the scent as fresh and clean. It’s a mild fragrance that isn’t overpowering, leaving hair smelling light and pleasant without lingering too long.

Yes, this shampoo is suitable for fine to medium hair types, including curly hair. It helps enhance volume while maintaining hair movement, making it a great option for those looking to add fullness to their curls.

This shampoo is sulfate-free, vegan, and paraben-free, making it safe for most users. However, if you have particularly sensitive scalp skin, it’s always a good idea to do a patch test first to check for any reactions.