May 19, 2025, 1:32 pm | Read time: 9 minutes

Although men are more frequently affected, an increasing number of women are also experiencing thinning hair. To counteract this, you might consider using the well-known Priorin hair mask. But does it deliver on its promises? STYLEBOOK has conducted research and presents highly rated alternatives.

What Causes Hair Loss?

Hormonal fluctuations, nutrient deficiencies (especially vitamin and iron deficiencies), genetic predisposition, stress, thyroid imbalances, improper care, as well as environmental influences, and certain medications can contribute to hair loss. Particularly women suffer during life phases such as pregnancy or menopause from hormone-related hair loss, while men typically deal with hereditary hair loss.

How Do Products That Stimulate Hair Growth Work?

Hair growth products generally target the hair root and require regular and long-term use. They promote scalp blood circulation, supply follicles with nutrients, or extend the hair growth phase.

Which Active Ingredients Can Promote Hair Growth?

Pharmaceutical Active Ingredients

Minoxidil

Extends the growth phase of hair follicles and promotes hair growth by stimulating scalp blood circulation. Minoxidil was originally a medication for treating high blood pressure. Common side effects include increased hair growth and headaches. However, when used topically for hair loss treatment, it is considered particularly well-tolerated.

Finasteride (only for men)

Acts hormonally against hereditary hair loss. It ensures that less DHT, a hormone known to attack hair roots, is produced in the body. Less DHT means that hair follicles are better protected and do not fall out as quickly. Products with Finasteride are prescription-only in Germany.

Non-Medical Active Ingredients

Caffeine

Caffeine stimulates scalp blood circulation and activates hair roots. It extends the lifespan of hair follicles and protects them from the inhibitory effects of dihydrotestosterone (DHT). By better supplying hair roots, hair growth can be stimulated, and hair thinning slowed.

Keratin

Keratin is the most important structural protein of hair. Additional keratin supply can fill damaged hair, repair brittle areas, and strengthen the hair.

Vitamin B5

It supports cell division and energy supply to hair follicles, which is essential for healthy hair growth.

Biotin

Also known as Vitamin B7 or Vitamin H, biotin is crucial for keratin formation. It strengthens the hair fiber from within, improves elasticity, and reduces hair breakage. An adequate biotin level supports the growth of healthy, strong hair and can prevent hair loss due to nutrient deficiency.

Panthenol

Panthenol is the precursor of Vitamin B5. It promotes scalp regeneration and improves its moisture balance. A healthy, well-moisturized scalp creates optimal conditions for hair growth. It also soothes irritated or dry skin areas and can indirectly help minimize hair loss caused by skin problems.

The Priorin Hair Mask

Effect of Priorin

The Priorin Hair Mask is specifically designed to sustainably strengthen hair and give it visibly more vitality. It claims to reduce hair breakage by up to 97 percent while making hair noticeably smoother. Thanks to its lightweight, nourishing formula, it is said to provide 60 percent more volume without weighing down the hair. Dermatologically tested, the hair mask is also suitable for sensitive scalps.

What are the main ingredients of Priorin?

With 97 percent plant-based ingredients, it naturally strengthens hair and supports healthy growth. The hair growth complex Baicapil penetrates deep into the hair roots and exerts its strengthening properties there. Baicapil combines valuable extracts from Baikal skullcap root with antioxidant effects and soy and wheat germ extracts that promote hair growth. The formula is complemented by ginseng, which improves combability, adds volume, and gives hair smoothness and shine. Argan oil provides intense shine and effectively prevents hair breakage. The care is rounded off by Vitamin B5, which gives hair additional smoothness, intensifies natural shine, and visibly improves volume.

How fast does hair grow with Priorin?

The Priorin Hair Mask does not promise overnight miracles, but many users report visibly stronger, more cared-for hair after just a few weeks. The hair structure appears smoother, healthier, and more cared for, which can also promote natural hair growth in the long term.

How is Priorin applied?

The mask is massaged into damp hair and scalp once or twice a week and rinsed out thoroughly after a short exposure time.

Are there side effects?

The mask is dermatologically tested and generally well-tolerated. Mild irritations are rare and usually occur only with individual hypersensitivity.

When should you not use Priorin?

If you have known intolerances to any of the ingredients or if your scalp is inflamed, you should refrain from using it. In case of doubt, consulting a dermatologist is advisable.

Evaluation based on customer reviews (medpex.de)

Users are enthusiastic about the immediately visible and noticeable care effect. The hair feels smoother after just a few applications, is easier to comb, and looks healthier overall. They are satisfied with the noticeably denser hair with regular use. The pleasant scent of the mask is also positively mentioned. Critical voices note that the effect on hair growth is rather subtle, which is not surprising for cosmetic products.

The best alternatives for women

Top product for fine hair: Kérastase Bain Hydra-Fortifiant Shampoo

This shampoo is specially developed for weakened, fine hair prone to hair loss to regulate reactive hair loss. Enriched with native Edelweiss cells and ginger root, it preserves fiber collagen and shine and stimulates nutrient microcirculation.

• Main active ingredients: Edelweiss stem cells, ginger root, Aminexil.

• Features: Sulfate-free, strengthens without weighing down.

• Application: Like a regular shampoo.

• Price/Quantity: Approx. €22.99 / 250 ml

Top product for hereditary hair loss: REGAINE Women Foam

REGAINE is one of the top brands for hair loss and has developed this foam specifically for women with hereditary hair loss. The active ingredient Minoxidil five percent reactivates inactive hair roots, increases their blood supply, and extends the hair growth phase, allowing them to grow back stronger and denser. Many women report initial successes after three to six months of regular use.

• Main active ingredient: Minoxidil (5%)

• Features: Specifically for women, effectiveness is medically proven according to the manufacturer.

• Application: Apply once daily directly to the dry scalp and let it absorb.

• Price/Quantity: Approx. €49 / 2 × 60 ml

Top product for all hair types: L’Oréal Paris Elvital Anti-Hair Loss Serum

The intensive serum from L’Oréal Paris is a real boost for lifeless, brittle hair. It reduces hair loss due to breakage and strengthens the hair fiber directly at the root, for visibly denser hair in just six weeks. It is particularly popular for its non-greasy, fast-absorbing formula.

• Main active ingredients: 1.5% Aminexil, caffeine, arginine

• Features: Lightweight leave-in formula, dermatologically tested, also suitable for sensitive scalps.

• Application: Apply daily directly to the scalp, gently massage, do not rinse.

• Price/Quantity: Approx. €17 / 102 ml

Top product for longer hair: Plantur 21 #longhair Set

This care package is particularly popular among young women but is suitable for anyone who desires longer, stronger hair. The set combines shampoo, conditioner, and booster with a nutri-caffeine complex and micronutrients that activate hair roots and support growth.

• Main active ingredients: Caffeine, biotin, zinc, magnesium

• Features: Silicone-free, fruity scent, effectiveness medically proven according to the manufacturer.

• Application: Massage shampoo into wet hair and rinse. Apply conditioner to lengths and let it absorb briefly. Apply booster directly to the scalp, do not rinse.

• Price/Quantity: Approx. €23 / Set (Shampoo 200 ml, Conditioner 175 ml, Booster 125 ml)

Top product value for money for hereditary hair loss: Minoxidil BIO-H-TIN

This medical hair growth product contains Minoxidil and stimulates scalp blood circulation, extends the hair growth phase, and strengthens hair roots.

• Main active ingredient: Minoxidil five percent

• Features: Initial use may lead to increased hair loss.

• Application: Depending on concentration, apply 1–2 times daily to the affected scalp, massage, and do not rinse.

• Price/Quantity: Approx. €38 / 3 x 60ml

Top product for early hair loss: Alpecin Caffeine Hair Booster

The Caffeine Hair Booster from Alpecin is an extra dose of energy for the hair root. It promotes scalp blood circulation, activates hair growth, and is ideal for those who want to strengthen their hair. It is particularly popular for prevention and early hair loss.

• Main active ingredients: Caffeine, niacin, zinc

• Features: Cooling effect, invigorating feel, silicone-free.

• Application: Apply daily directly to the scalp, massage, do not rinse.

• Price/Quantity: Approx. €19 / 2 x 200ml

Do hair growth products even work?

The effectiveness of hair growth products largely depends on the ingredients and the cause of hair loss. While medically tested active ingredients can indeed stimulate hair growth, cosmetic products often primarily have nourishing and strengthening effects that make hair appear stronger and fuller.

How can you get targeted treatment for hair loss?

Medical methods

Hair transplant

A permanent solution for advanced hair loss is a hair transplant. Healthy hair roots, usually from the back of the head, are removed and implanted in balding areas. This method often achieves very natural results but is costly and requires careful pre-examination.

PRP therapy (autologous blood therapy)

In PRP therapy, blood is drawn from the patient, processed, and the platelet-rich plasma is injected into the scalp. The growth factors contained are intended to stimulate hair follicles and improve hair growth.

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Alternative methods

Low-Level Laser Therapy (LLLT)

Special devices like laser helmets or combs are supposed to promote scalp blood circulation and stimulate hair follicles.

Dietary changes and stress management

A balanced diet and reducing stress factors can positively affect hair growth.

Dietary supplements

Products with vitamins (e.g., biotin, vitamin D), minerals (e.g., iron, zinc), and amino acids support hair health from within.