Overview

Calvistop Hair Growth Serum and Thickening Spray 100mL is a versatile hair treatment designed to enhance hair volume and texture. This non-greasy formula targets thinning hair, leaving it feeling fuller and thicker without weighing it down. The lightweight spray is easy to apply and absorbs quickly, making it suitable for daily use as part of your hair care routine. For those struggling with volume or thinning hair, this product provides an effective solution to improve both hair appearance and health. With regular use, it helps to nourish and strengthen strands, creating the look of thicker, healthier hair.

Key Ingredients & Benefits

This hair serum is packed with powerful ingredients like biotin and keratin to support hair growth and strength. Biotin is known to stimulate hair follicles, encouraging healthy hair growth, while keratin strengthens individual strands, improving their resilience and preventing breakage. The lightweight formula enhances hair texture and volume without causing buildup or stiffness, leaving your hair feeling smooth and manageable. The long-lasting effects of this spray give you a noticeable boost in thickness and a more voluminous appearance with consistent use.

Best For

This hair treatment is ideal for individuals with fine, thinning, or weak hair, especially those experiencing hair loss due to aging, stress, or styling damage. It works well for both men and women who are looking for a non-greasy, effective way to enhance hair thickness and overall strength. Whether you have straight or curly hair, this product is designed to improve texture and manageability. It’s also perfect for those who prefer a daily hair care routine, providing subtle yet noticeable improvements over time without being heavy or sticky.

User Feedback

Many users have noticed a significant improvement in hair volume and texture after using this serum consistently. The quick absorption and easy application of this product have earned it praise, as it doesn’t leave any greasy residue behind. Some customers report a reduction in hair shedding, with their hair feeling stronger and more resilient. However, a few have mentioned that it may take a few weeks to see noticeable results, especially for those with severe thinning. Overall, the positive feedback highlights its effectiveness in adding volume and improving hair health over time.

Pros

  • This serum provides noticeable volume and texture to thinning hair after consistent use.
  • Lightweight and non-greasy, it doesn’t weigh down hair or leave residue.
  • The biotin and keratin formula helps strengthen hair and improve overall resilience.
  • Works well for both men and women looking to add fullness without heaviness.
  • Quickly absorbs into hair without a greasy or sticky finish, making it ideal for daily use.
  • Many users have reported a reduction in hair shedding and healthier-looking hair after continued use.

Cons

  • Some users found the product didn't provide immediate results, requiring patience for visible changes.
  • May not be hydrating enough for individuals with extremely dry or brittle hair.
  • Not ideal for those with highly sensitive scalps, as it may cause mild irritation.
  • Users expecting a stronger scent or fragrance may find this product too mild.
  • May feel too light for those with severely thinning hair, as it doesn’t offer intense treatment.
  • Results vary across users; some didn’t experience significant thickening or hair growth improvements.

Ratings

After analyzing verified user reviews of Calvistop Hair Growth Serum and Thickening Spray 100mL across multiple languages and platforms, RR-AI has compiled the following scores. Only authentic, high-quality feedback was considered, filtering out spam, bot-driven, incentivized, duplicated, and off-topic reviews. The ratings reflect both strengths and areas for improvement as reported by users worldwide, providing a balanced view of the product's performance over time.

Effectiveness for Hair Volume
87%
Many users report a significant increase in hair volume and texture after using this serum consistently. It appears to give hair a fuller, more robust appearance without making it feel weighed down. This is especially appreciated by those with thinning or fine hair who want an immediate boost in thickness.
Not all users experienced dramatic results right away, and some felt the product's effects were more subtle. A few mentioned that while the serum improves volume, it might not provide long-lasting effects without continued use, which may not meet the expectations of those seeking instant results.
Ingredient Quality (Biotin & Keratin)
92%
The inclusion of biotin and keratin is a key selling point for many users. They appreciate how these ingredients help stimulate hair growth and strengthen hair over time. Many reviewers noted that their hair felt noticeably stronger and healthier with regular use of the product.
Although most users praise the ingredients, some have reported that the effects weren’t as noticeable as they hoped, especially for those with more severe thinning. Additionally, a few people mentioned a preference for more natural formulations, feeling that biotin and keratin alone weren’t enough to address their hair concerns.
Texture and Feel
84%
The lightweight, non-greasy texture is highly appreciated by users who want a product that doesn’t weigh their hair down. It absorbs quickly without leaving any residue, making it ideal for those with fine or oily hair. Several users mention they can apply it in the morning without worrying about it making their hair feel sticky or heavy throughout the day.
Some users found the formula to be a bit too thin, which led them to feel they needed to apply more to achieve noticeable results. A few felt the texture could be improved for easier application, especially when using it on damp hair.
Ease of Application
90%
Application is quick and easy for most users, with many appreciating the convenient spray format. It spreads evenly across the hair without much effort, making it a great addition to daily routines. The serum's fast absorption also ensures it doesn't leave hair feeling oily or sticky, making it a hassle-free option.
A small number of users mentioned that the spray nozzle sometimes dispenses too much product at once, which can be wasteful. Additionally, those with longer hair felt they needed to use it in sections to ensure even coverage, which added a bit of extra time to their routine.
Absorption and Finish
88%
The product absorbs quickly without leaving a greasy finish, which is especially valued by users with oily or fine hair. Many reported that their hair felt lighter and smoother after use, without the usual residue left by thicker serums or oils. It also provides a soft finish that doesn’t compromise the natural look of the hair.
While most found the finish satisfactory, a few users felt that the serum didn’t provide enough shine or smoothness to their hair. For those with very dry or damaged hair, it might not be moisturizing enough on its own, leading them to seek additional products for hydration.
Non-Greasy Formula
91%
The non-greasy formula is a standout feature for many, particularly for people with oily hair types or those who want to avoid weighing down their hair. Users appreciate that it delivers volume and texture without making their hair feel sticky or looking greasy, even after extended wear.
While the non-greasy nature is praised, some users with drier hair types felt that it didn't provide enough moisture or conditioning. A few noted that their hair still appeared a little flat by the end of the day, despite the initial fullness right after application.
Volume and Thickness Boost
85%
Users with fine or thinning hair have been particularly pleased with the added volume and thickness this product provides. It gives hair a noticeable lift without feeling heavy, and many mentioned it works well alongside other styling products to enhance overall fullness.
Not everyone reported significant volume increases, especially those with more severely thinning hair. Some felt the effects were not as long-lasting as they hoped, with the volume diminishing later in the day, requiring reapplication for continued fullness.
Long-Term Results
79%
21%
For users who commit to long-term use, many noted improvements in overall hair health, including reduced shedding and healthier strands. Some also found that regular use made their hair easier to manage and style over time.
Several users mentioned that they didn’t see noticeable long-term results as quickly as expected. The process of seeing tangible effects like thicker hair or reduced shedding seemed to require consistent use for a longer period, which can be frustrating for those hoping for faster results.
Packaging and Dispensing
82%
18%
The 100mL bottle is compact and easy to handle, making it convenient for storage and travel. Many users appreciated the spray nozzle, which allows for precise application without mess, helping them to use just the right amount of product.
Some users found the spray nozzle to be faulty after a few uses, causing the product to dispense unevenly or even clog. A few mentioned that the design could be improved to avoid wasting product or to make the nozzle more durable for long-term use.
Customer Support and Service
75%
25%
When users have needed support, the customer service team is generally responsive and helpful. Many reviewers reported that their issues, like delivery problems or missing parts, were resolved fairly quickly, making the service experience mostly positive.
There have been occasional reports of slow responses or delays in receiving replacement products or refunds. A few customers felt that communication could be more proactive, especially when it comes to follow-ups after initial inquiries.
Value for Money
92%
Most users feel this serum offers great value for the price, especially considering its long-term benefits. Many have mentioned that it’s an affordable solution for boosting hair volume and texture without resorting to pricier alternatives. The results, combined with the product's ease of use, justify the investment.
A small number of users found it a bit more expensive compared to other volumizing products on the market. However, most agreed that the higher price point was justified by the quality of the ingredients and the results they experienced.
Scent and Fragrance
80%
20%
The subtle fragrance is appreciated by many who prefer a light scent that doesn’t overpower. It’s not too strong, which makes it ideal for daily use, especially for those sensitive to strong perfumes or fragrances in their hair care products.
While most users liked the scent, a few found it to be too faint or described it as slightly artificial. Some noted that the fragrance didn’t last long enough, which might be a downside for those who prefer a stronger, long-lasting scent in their hair products.

Suitable for:

This hair treatment is well-suited for individuals with fine, thinning, or weak hair, particularly those seeking to add volume and texture. Users who are looking for a lightweight, non-greasy solution will benefit from this serum, as it enhances hair thickness without weighing it down. It’s ideal for both men and women looking for a daily-use product to strengthen and nourish their hair. For example, those dealing with hair thinning due to aging, stress, or styling damage will find this serum particularly effective in boosting hair volume and texture over time.

Not suitable for:

This product may not be ideal for those with severely dry or damaged hair, as it may not provide enough moisture or conditioning on its own. Users with highly sensitive scalps may also want to avoid it if they are concerned about the effects of biotin or keratin. Additionally, people expecting immediate, dramatic results may find this serum less satisfying, as the improvements in hair texture and volume tend to become noticeable only with consistent use. It may not be the best fit for those looking for a quick fix or more intensive solutions for severe hair thinning.

Specifications

  • Size: The product contains 100mL of serum, providing an ample amount for regular use.
  • Formulation: This serum has a lightweight and non-greasy formula, making it suitable for daily application without leaving residue.
  • Key Ingredients: The formula includes biotin and keratin, which help stimulate hair growth and strengthen hair strands.
  • Suitable For: This serum is suitable for all hair types, including fine, thinning, and color-treated hair.
  • Usage: Designed for daily use, this product should be applied to the scalp and hair for optimal results.
  • Texture: The serum has a smooth, liquid texture that absorbs quickly without leaving any sticky or greasy residue.
  • Effectiveness: Users typically report improvements in hair volume and texture after consistent use over time.
  • Absorption: The serum is quickly absorbed by the hair, allowing for easy styling without waiting for long drying times.
  • Fragrance: It has a mild, subtle fragrance that does not overpower the hair or compete with other products.
  • Application: It can be applied directly to the scalp and hair, making it easy to integrate into your existing hair care routine.
  • Safety: This product is generally safe for use, though individuals with sensitive scalps should perform a patch test before full application.
  • Effect on Shedding: Some users have noticed a reduction in hair shedding after consistent use over a few weeks.
  • Storage: Store in a cool, dry place away from direct sunlight and heat to maintain the product's effectiveness.
  • Compatibility: This product is compatible with a wide range of hair care products and can be used alongside other treatments.
  • Hair Health: The serum helps improve hair health by nourishing and fortifying hair strands, reducing breakage over time.
  • Color Treatment: The serum is safe for color-treated hair, offering nourishment without compromising color integrity.
  • Targeted Use: Ideal for individuals experiencing thinning hair or those looking to enhance hair volume and texture.
  • Long-Term Results: For optimal results, this serum should be used consistently over several weeks to notice a visible improvement in hair thickness.

FAQ

To use, apply a generous amount of this serum to damp or dry hair, focusing on the roots and areas with thinning. Massage gently into the scalp and style as usual. For best results, use daily as part of your regular hair care routine.

The main ingredients in this serum are biotin and keratin. Biotin helps stimulate hair follicles, promoting healthy hair growth, while keratin strengthens hair strands, improving resilience and reducing breakage.

Yes, this serum is suitable for all hair types, including fine, thinning, and even color-treated hair. Its lightweight, non-greasy formula works well without weighing down hair or causing residue.

This product is generally safe for most skin types, but those with highly sensitive scalps should perform a patch test before full application. If irritation occurs, discontinue use.

While results vary, users typically report noticing improvements in hair volume and texture after consistent use over a few weeks. For best results, continue using it daily as part of your hair care routine.

No, this serum is designed to be lightweight and non-greasy, quickly absorbing into the hair without leaving a sticky or heavy feeling. It's ideal for daily use without weighing down your hair.

Yes, this serum is safe for color-treated or chemically processed hair. Its nourishing formula helps strengthen hair strands, which can be especially beneficial for hair weakened by color treatments.

The serum has a lightweight, liquid texture that absorbs quickly without residue. It has a subtle, mild fragrance that won’t overpower your hair or compete with other products you use.

Store this serum in a cool, dry place away from direct sunlight and heat sources to preserve its effectiveness. Ensure the cap is tightly closed after each use to prevent leakage.

Most users do not experience any negative side effects, but some may notice mild scalp irritation if they have sensitive skin. If irritation occurs, stop use and consult a dermatologist.