Beverly Hills MD Thick + Full Brow Enhancing Serum Review: A Science-Backed Solution for Sparse Brows

This peptide-rich brow serum promises to address thinning and patchy eyebrows with a prostaglandin-free formula. We put it to the test to see if it delivers visible results without harsh chemicals.
By Dermspotlight Staff |Updated Dec 24, 2025
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Key Highlights

  • Features clinically-studied ingredients like Redensyl, Capixyl, and Sympeptide that target hair density and strength
  • Prostaglandin-free formula minimizes risk of side effects like skin darkening or eye color changes
  • Requires consistent twice-daily application for 60-90 days to see noticeable improvements
  • Higher price point compared to basic brow gels, but includes active ingredients at meaningful concentrations
  • Best suited for those with genuinely thinning brows rather than naturally sparse hair patterns

Introduction

Eyebrow thinning may also alter facial symmetry and give us an age that is not reflective of our inner self. Sparse eyebrows have become a general issue, be it the result of over-plucking, old age, inherent factors or medical causes. Hair growth includes a variety of products, yet it is very hard to locate a specific product in this problem.

Beverly Hills has developed a specific solution for skinny brows. A different method of approaching the issue is the Thick + Full Brow Enhancing Serum, a daily treatment. This serum aims to feed the hair follicles and the skin underneath. Having analyzed the formula and the actual user experiences, it is time to know the facts before committing money to this brow treatment.

What is Beverly Hills MD Thick + Full Brow Enhancing Serum?

Thick + Full Brow Enhancing Serum is a peptide-based product that is used to enhance the look of thinning or patchy eyebrows. It is a formula that mixes the amino acids with botanical extracts plus three main peptide complexes to help in making the brows hair healthier and look better. This serum is designed to tackle factors that trigger sparse brows as opposed to the cosmetic products, which only fill in their gaps. It is in a 3mL tube, which is applied with a wand and is to be used twice a day for a period of several months to give the best results.

Brand Highlights

  • Focuses on prostaglandin-free formulations to avoid hormonal manipulation
  • Uses third-party testing for quality assurance before products reach consumers
  • Emphasizes transparent ingredient sourcing and meaningful concentrations
  • Offers a 60-day money-back guarantee for unsatisfied customers
  • Provides subscription options with savings and exclusive benefits
  • Formulates without parabens, phthalates, mineral oils, and hormones

Fast Facts

Beverly Hills MD Thick + Full Brow Enhancing Serum

Product Type Daily brow enhancing serum
Size 0.1 fl oz / 3 mL
Key Ingredients Redensyl, Capixyl, Sympeptide, Keratin
Application Frequency Twice daily (morning and night)
Results Timeline Visible improvements in 60-90 days
Price Range $35-$44 per tube depending on purchase plan
Suitable For Thinning, sparse, or patchy brows
Free From Prostaglandins, hormones, parabens, phthalates
Where to Buy Official Website

Pros and Cons

Pros

  1. Contains clinically-studied peptide complexes at active concentrations
  2. Prostaglandin-free formula reduces the risk of unwanted side effects
  3. Targets both hair strength and skin nourishment simultaneously
  4. Includes antioxidants and vitamins for overall brow health
  5. Suitable for sensitive skin with gentle, non-irritating ingredients
  6. 60-day satisfaction guarantee provides purchase protection

Cons

  1. Requires consistent twice-daily application for several months
  2. Results may vary significantly between individuals
Check the Official Websiteto Purchase Beverly Hills MD Thick + Full Brow Enhancing Serum.

How Does It Work?

The serum works on a dual action concept, and that is, a concept that targets the hair as well as the surrounding skin where the hair grows. It functions first to enhance the strength of the already existing brow hairs by providing the hair shaft with proteins and nutrients.

Second, the formula targets the dermal layer under the brows whereby the hair follicles are found. It provides a healthy environment to hair growth by enriching this base layer with vitamins, botanical extracts and moisture binding substances.

Lastly, the serum also contains substances which assist in the natural growth of the hair. Instead of trying to impose unnatural changes on your body through manipulation of hormones, it assists your own body processes in lengthening the active growth phase of the hair on your body.

Key Ingredients Analysis

Redensyl

Redensyl is a patented compound that is made out of plant extracts to help in promoting hair growth. It has been shown to have the potential to stimulate the stem cells of hair follicles, which may enhance the lushness of the hair and increase the duration of the growing period of hair.

Capixyl

Capixyl is a red clover extract peptide complex that is used to aid the hair follicles and decrease factors that are linked to thinning. Capixyl has demonstrated itself to be a successful clinical trial that not only improves hair anchoring but also reduces the appearance of thinning in a few months. It enhances the surrounding of hair follicles, providing a more favorable environment in which the hair grows.

Sympeptide (Myristoyl pentapeptide-17)

Sympeptide is an artificial peptide which is specially designed to make the eyelash and eyebrow appear thicker by provoking the production of keratin. With regular use, the appearance of both the brow and lashes can be significantly extended and make the eyes look longer with fuller appearance. It provides a safer and more natural substitute to the prescription treatments as it helps in the natural protein structure of the hair.

Keratin and Keratin Amino Acids.

The major protein in hair is keratin and smaller building blocks that compose it are its amino acids. It has been scientifically proven that using Keratin is a great way to make your hair stronger, less breakable, and to mend it. The amino acids also enter into the hair shaft and mend it internally, strengthening its outer protective layer.

Panthenol (Pro-Vitamin B5)

Panthenol is a provitamin which is converted to Vitamin B5 on consumption, and it is a deep moisturizer to hair and skin. It has been found to have the capacity to attract and retain moisture, which enhances the elasticity of hair and lessens the breakage. It is also anti-inflammatory and calms down the sensitive skin on the brows.

Biotin (Vitamin B7)

Biotin is a B-vitamin, which is very important in the formation of keratin, the major protein that constitutes the hair. Research indicates that biotin helps in maintenance of the framework of keratin production and as a result, stronger and more resilient hair may be achieved in the long-term. Topically, it serves to deliver local assistance to the hair follicles.

Sodium Hyaluronate

The smaller-sized hyaluronic acid is sodium hyaluronate, which is capable of deep hydration of the skin and hair. It has been reported to have been effective in enhancing skin moisture and plumpness. In the case of brows, it provides the underlying skin with good health and helps give a better base in which the hair follicle attaching is stronger.

Check the Official Websiteto Purchase Beverly Hills MD Thick + Full Brow Enhancing Serum.

How to Use

To achieve the highest success, it is best to apply the serum twice a day, in the morning and evening. Begin by washing your face so that your brows are clean and dry. With the wand applicator, directly apply the serum to eyebrows with emphasis on sparse or thin sections.

Softly massage the product to the skin, to feed the hair follicles. Allow the serum to dry fully within 2- 3 minutes before using any other skincare or make-up. Regularity of use of 60-90 days is important in order to achieve visible improvement.

Benefits

  • Adds Ultra Fine and Patchy Look: The formula is specifically applied to brows that have a thin or patchy look, and helps to fill them in over time so that they appear a lot more uniform, without the necessity of applying makeup on a daily basis.
  • Enhances Thicker Hair Structure: The serum includes proteins and peptides that are directly applied to the hair shaft, thus making existing brow hairs stronger and preventing them from harming during daily grooming or due to environmental factors.
  • Native Follicle Environment: The blend of vitamins, botanical extracts and hydrating compounds contributes to healthier skin conditions under the brows and is important in promoting the hair growth cycle.
  • Offers Strong Intensified Hydration: Ingalia such as sodium hyaluronate and panthenol keep the hair and the skin hydrated to avoid brittle hair, and keeps the skin in the best state to have healthy-looking brows.
  • Natural Growth Cycles: This serum does not impose unnatural changes, but instead encourages your own natural cycle of hair growth resulting in a more natural and long-term sustainable growth.

Cost and Value

One-Time Purchase: A single tube (3mL) costs $44.00, which typically lasts 4-6 weeks depending on application amount.

Subscribe & Save Options:

  • Single Tube Monthly Subscription: $44.00 per month
  • Two Tubes Every 2 Months: $76.00 total per month
  • Three Tubes Every 3 Months (Best Value): $105.00 total annually

Subscription Benefits Include:

  • Minimum 10% savings on every order
  • Easy modification, cancellation, or pause options
  • Exclusive welcome gift with first recurring shipment
  • Rewards program for continued loyalty
  • Automatic delivery to ensure consistent use

Money-Back Guarantee: The company offers a 60-day satisfaction guarantee.

Check the Official Websiteto Purchase Beverly Hills MD Thick + Full Brow Enhancing Serum.

Customer Reviews

Jolly – 4/5 Stars
This product promises to do what it does but you must be realistic on timelines. By the fourth month, my eyebrows had significantly grown. It is a lightweight serum and does not cause any irritation to my sensitive skin, which is a big advantage.

Rachel. – 3.5/5 Stars
I have liked this serum. My eyebrows appear more improved than they were initially, fewer and more pronounced. Its use is simple and I have not experienced any inconvenience, hence that is good. I still use it but I am also looking into other alternatives because I believe it is relatively expensive.

Trilly. – 4/5 Stars
It is soft, it absorbs fast, and I have seen gradual recovery within the last two months. My brows are not quite miraculous, but they are certainly filling some of their patchy spots. I also like the fact that it does not have any prostaglandins because I would get dark circles around my eyes when using other products. The cheapest way is the subscription, and it will make the price more affordable to use in the long term.

FAQs

Q: How long before I see results?

A: The majority of the users will start experiencing the incremental gains around 60 days, and further gains will be evident between 90-120 days. The growth of hair is a natural process and thus patience and regular application is a sure way of gaining maximum results.

Q: Is it possible to use it with sensitive skin?

A: Yes, the formula will be soft and contain no severe irritants. Nonetheless, in case you have very sensitive skin or you have known allergies to any of the materials, conduct a patch test on your inner arm prior to applying it to your brows.

Q: Will this work with naturally thin brows?

A: There are different outcomes of the underlying cause of thinning. In case of sparse brows, like over-plucking, aging, or damage, then more improvements are likely to be seen. In case you are genetically born with fewer follicles, the outcomes may vary.

Q: Is it possible to use makeup on top of the serum?

A: Yes but do not apply any brow product, makeup or other skincare until the serum is 100% dry (takes approximately 2-3 minutes). This makes the active ingredients penetrate effectively.

Q: What happens if I stop using it?

A: The benefits of the active ingredients will wear off, and your brows will slowly go back to their original state of the base over a series of months. To achieve sustained outcomes, it is a common practice to continue utilizing it.

Q: Is it safe when used during pregnancy?

A: Although the formula does not have hormones or prostaglandins and is used topically, it is always best to consult your healthcare provider before using any new beauty product during pregnancy or when breastfeeding.

Final Verdict

Thick + Full Brow Enhancing Serum is an intelligent solution to the problem of thinning brows. The risks are reduced by the use of the prostaglandin-free formula. This serum is a valid option that needs to be considered by people experiencing sparse or patchy eyebrows caused by excessive plucking, aging, or overall thinning.

One should, however, be realistic about this product. The results will take months of detailed work of applying twice a day, and the outcome will be very different in every person. It is also quite expensive, particularly when it comes to long-term maintenance, but subscriptions can be used to address the costs. In case you want to find an alternative to using a daily brow makeup and can devote certain time and money to the treatment method, this serum promises what it promises to many users. It is only necessary to remember that patience and devotion are as crucial to the formula itself as they are to getting much fuller-looking brows.

Where to Buy?

Check the Official Website to Purchase this Product.

Dr. Nazanin Saedi

By Dr. Nazanin Saedi

Dr. Saedi is a board-certified dermatologist specializing in dermatologic surgery and cosmetic dermatology.

7 sources

[1] A Clinical Evaluation of the Safety, Efficacy, and Tolerability of the Soulflower Rosemary Redensyl Hair Growth Serum, Tetragain™, in Healthy Female Subjects for the Treatment of Alopecia - https://pmc.ncbi.nlm.nih.gov/articles/PMC11800316/
[2] Topical Alternatives for Hair Loss: Beyond the Conventional - PMC - https://pmc.ncbi.nlm.nih.gov/articles/PMC12251978/#sec6
[3] Synergy of keratin peptides and natural oils embedded in nanostructured lipid carriers to protect and restore human hair structure - ScienceDirect - https://www.sciencedirect.com/science/article/abs/pii/S0167732225001151
[4] Keratin: Protein, Structure, Benefits, Uses & Risks - https://my.clevelandclinic.org/health/body/23204-keratin
[5] The Role of Vitamins and Minerals in Hair Loss: A Review - PMC - https://pmc.ncbi.nlm.nih.gov/articles/PMC6380979/#Sec5
[6] A Review of the Use of Biotin for Hair Loss - PMC - https://pmc.ncbi.nlm.nih.gov/articles/PMC5582478/
[7] Bifunctional sodium hyaluronate microneedle patches integrating 5α-reductase and ROS regulation for boosted hair regeneration - ScienceDirect - https://www.sciencedirect.com/science/article/abs/pii/S0141813025068734

**This is a subjective assessment based on the strength of the available information and our estimation of efficacy.

*Result may vary. The information contained in this website is provided for general informational purposes only. No medical claims are implied in this content, and the information herein is not intended be used for self diagnosis or self treatment of any condition.

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Product reviews are intended solely for informational purposes and represent the individual views and opinions of the contributors, not necessarily those of Dermspotlight. We do not authenticate or endorse any assertions made in these reviews. Kindly refer to the complete product reviews disclaimer before proceeding.

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