Thin Hair Volume: Does Hair Regrowth Treatment Work? Causes and Signs + Editor’s Review

For many women, having thin hair is a major concern. It makes hairstyles look flat, adds years to your appearance, and may even be mistaken for balding. Unlike skin issues, you can’t hide thinning hair with makeup. If you’ve noticed your hair becoming visibly sparse, it’s crucial to address it early—waiting too long could lead to actual hair loss and damage your image. But before jumping into any treatment, it’s essential to understand the root causes of low hair volume. Once you know what’s causing it, you can choose the right solution. Keep reading as we break down the common causes, signs, and effective ways to boost hair density—plus our editor’s hands-on experience with a popular regrowth treatment!

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What Causes Thin Hair Volume?

If you’ve realized your hair looks thinner than usual, your first instinct might be to look for quick fixes. But the real key is identifying what’s behind the issue. Once you understand the cause, you can take targeted action to truly restore your hair.

Cause 1: Genetics

Your hair volume is partly determined by genetics. Each person is born with a fixed number of hair follicles—about 100,000 on average. Each follicle can produce 1 to 4 hairs, and the number of follicles gradually decreases with age. Even hair transplant surgery can only relocate healthy follicles, not create new ones. Those with a genetic predisposition to low hair density may have fewer follicles, or each follicle may only produce one hair, making their overall volume appear less. Fortunately, it’s not an irreversible condition—proper hair care and regrowth treatments can make a significant difference.

Cause 2: Fine Hair Texture

Even with a normal or above-average hair count, having fine hair strands can make your hair look flat and sparse. Fine hair tends to cling to the scalp, lacks bounce, and is easily affected by humidity. Many women with fine, fragile strands opt for long, straight hairstyles that reduce breakage but also make hair appear thinner.

Cause 3: Flat, Limp Hair

Aside from fine texture, flat hair is another culprit. Hong Kong’s humid climate often worsens the issue. People with oily or seborrheic scalps produce excess sebum, which clogs pores and constricts the blood supply to hair follicles—this limits hair growth. Plus, greasy hair quickly looks limp after washing, sticking to the scalp and making it look like there’s even less volume.

Cause 4: Actual Hair Loss

Low hair volume can also stem from hair loss, especially in women. One common cause is extreme dieting. Many women turn to crash diets to slim down quickly, but this can deprive the body of essential nutrients like protein, iron, and vitamin D2—leading to hair shedding. Intense weight-loss methods can throw the body off balance and accelerate hair fall. If hair loss is the cause of your thinning, consult a specialist for a proper diagnosis and begin treatment early.

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4 Key Signs of Thin Hair Volume—Check Before You Treat

Sign 1: Hair Becomes Finer

Changes in hair texture can reflect changes in your overall health. If your once thick strands now feel frizzy, weak, or break easily in the middle, it could be a red flag. A noticeable reduction in new hair thickness and flatter roots are signs that your hair isn’t getting the nutrients it needs.

Sign 2: Visible Scalp

With healthy volume, your scalp should be mostly hidden by strong hair strands. But if you can clearly see your scalp when looking in the mirror—especially along your part or hairline—it’s a sign that your hair is thinning.

Sign 3: Losing Over 100 Strands a Day

Wondering if your hair is thinning? Count your daily hair fall. Normally, we shed about 50–100 strands a day due to the natural hair growth cycle. But if you’re seeing more hair on your pillow or in the shower, your hair density may be decreasing.

Sign 4: Oily, Itchy Scalp

If your scalp suddenly becomes oilier, itchier, or starts flaking, this could point to scalp imbalance—often a precursor to thinning hair. Excess oil blocks follicles, weakening hair growth over time.

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How Does Traditional Chinese Medicine (TCM) Address Hair Thinning?

In TCM, hair health reflects internal balance. Treatments focus on regulating the body from within while correcting poor lifestyle habits—especially diet—to enhance overall wellness and hair growth.

Method 1: TCM Herbal Treatment

TCM believes that hair loss is often due to kidney or blood deficiencies. Since hair is considered a reflection of blood health (“the surplus of blood”), insufficient energy and nutrients can disrupt hair growth. To treat thinning hair, TCM often starts by nourishing kidney energy (qi). Black foods like black beans and mulberries are commonly used for this purpose, as dark-colored ingredients are believed to strengthen the kidneys. Animal kidneys, like pork or beef kidneys, are also considered beneficial—especially for men.

In addition to kidney tonics, boosting both energy (qi) and blood is crucial. Some women who eat lots of iron-rich foods like red dates or spinach may still see no improvement because they’re not addressing qi. Herbs like codonopsis (dang shen) and prince ginseng (tai zi shen) are used to enhance both.

That said, TCM typically requires a long-term commitment—sometimes six months or more—and the bitter taste of herbal remedies isn’t for everyone.

Method 2: Hair-Boosting Foods

Diet plays a huge role in maintaining healthy hair. Skipping nutrients or eating too many oily, sugary, or overly spicy foods can affect your scalp and lead to hair loss.

Hair is mainly made of protein, so eating high-quality protein like salmon can help. Salmon also provides omega-3 fatty acids and vitamins that support hair growth. Nuts like almonds and walnuts are rich in fatty acids that nourish the scalp and prevent breakage.

For those experiencing hair thinning due to iron deficiency, spinach is a great choice. It’s packed with iron, vitamins, and vitamin C, which helps the scalp repair itself and supports healthy follicles.

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Popular Treatments on the Market for Thinning Hair

With modern lifestyles becoming more stressful, hair loss is now common across all ages and genders. If you notice your hair volume decreasing, don’t wait—early treatment is key. Besides TCM and diet changes, here are some mainstream options:

Treatment 1: Oral Medication

Oral medications have gained popularity due to their convenience. Some drugs, like spironolactone, are designed to block male hormones and are often prescribed to women with hair thinning.

However, side effects are a real concern. Users have reported menstrual irregularities, so these should only be taken under medical supervision.

Treatment 2: Topical Hair Growth Solutions

Topical serums and solutions applied directly to the scalp are another common option. However, many are designed only to stimulate growth—not to stop underlying hair loss. This means they address the symptom, not the cause. Plus, some products contain chemicals that may irritate the scalp or even accelerate hair loss.

Treatment 3: Hair Transplants

Hair transplant surgery involves moving hair follicles from denser areas (like the back of the head) to balding spots. When done properly, it creates a natural look—but it’s a delicate procedure. If mishandled, it can lead to failed transplants or severe inflammation, even permanent follicle damage.

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Editor’s Real Experience: Perfect Medical F8 Hair Regrowth Treatment for Women

Like many women, I’ve always dreamed of having a thick, full head of hair. But I’ve had low hair volume since I was young, and as I got older, I started losing even more. I tried all sorts of hair growth shampoos with no success—so I finally decided to try the F8 Hair Regrowth Treatment at Perfect Medical.

I’d heard great things about it online. It’s non-invasive and safe for the scalp, using soft laser technology to reactivate dormant hair follicles and stimulate healthy growth—without causing damage.

Booking the trial was easy. I filled in my details online and received a confirmation SMS shortly after. On the day, I just showed the message and was good to go!

The staff first did a detailed scalp analysis and explained how the F8 treatment works. Since it was my first visit, they were very thorough. The process involved three main steps:

1. Deep scalp cleansing to purify pores and remove dead skin.
2. Soft laser therapy, applied evenly across the scalp.
3. Application of their exclusive hair regrowth serum.

According to the therapist, this 3-step process reactivates dormant follicles, boosts blood flow, and enhances stem cell activity—encouraging hair to grow back stronger.

The entire experience was incredibly relaxing. Right now, Perfect Medical is offering free trials of the F8 treatment. If you’re struggling with low hair volume, it’s worth giving it a try!