Pumpkin Seed Benefits: Backed by Science

Overview Summary

• Pumpkin seeds benefits are gaining traction in hair care for their ability to support hair growth, scalp health, and reduce hair loss by blocking DHT.
• Rich in phytosterols, essential fatty acids, and antioxidants, pumpkin seeds strengthen hair, promote shine, and combat oxidative stress.
• Studies, such as those in Phytotherapy Research, indicate a 40% hair regrowth in participants using pumpkin seed oil for hair, compared to 10% in those without.
• Pumpkin seeds offer topical and oral applications for hair health, each providing unique benefits for the scalp and follicles.

Introduction

Name 

PUMPKIN //  Scientific Name: Cucurbita pepo

There are hundreds of cultivars within the Cucurbita pepo species. This species is incredibly diverse and includes a wide range of plants such as pumpkins, zucchinis, pattypan squash, and ornamental gourds. Each of these categories has numerous unique cultivars, bred for specific colors, shapes, sizes, and culinary purposes. Cucurbita pepo is one of the most cultivated and varied species in the Cucurbita genus, making it a staple in gardens and markets around the world.

Understanding Pumpkin Seed Benefits 

As more people seek effective plant-based solutions, pumpkin seed extract and pumpkin seed oil for hair are gaining popularity due to the ability to nourish the scalp and strengthen hair strands. Emerging research suggests that pumpkin seeds might impede testosterone conversion (via blocking DHT), which is often linked to hair loss. A small study in Phytotherapy Research found that participants using pumpkin seed oil experienced significant hair regrowth compared to those who did not. 

Pumpkin seed benefits include more than hair loss prevention, but also overall scalp health, encouraging shine and vitality while also combating oxidative stress. Those looking for natural remedies may find this botanical fits perfectly into their hair care regimen as an effective treatment.

Pumpkin seed oil for hair has entered the spotlight for its diverse uses in both historical and modern contexts, much like olive oil. This rich oil, extracted from pumpkin seeds, offers health advantages and potential for hair care.

Pumpkin Seed Oil vs. Pumpkin Seed Extract: What is the difference? 

Pumpkin seed oil and pumpkin seed extract both offer valuable benefits for hair health, but they work in different ways. Pumpkin seed oil is rich in essential fatty acids, phytosterols, and antioxidants that nourish the scalp, strengthen hair, and support growth. Its oil form is typically used for topical applications and is highly effective in combating DHT—a hormone linked to hair loss—by inhibiting the enzyme 5-alpha-reductase (Cho et al., 2014). On the other hand, pumpkin seed extract is a more concentrated form, often used in supplements. It contains high levels of active compounds like β-sitosterol, which can help promote hair growth when taken orally by addressing underlying hormonal imbalances linked to hair thinning (Wargala et al., 2023). While the oil is excellent for topical scalp health and hydration, the extract is  suited for those looking for internal support to balance hormones and reduce hair loss. Depending on your needs, the oil and extract can be used independently or in tandem to optimize hair health.

Sempre Hair Growth Vitamins made with Pumpkin Seed Extract

But how did pumpkin seeds evolve from its early uses to become a staple in contemporary wellness and beauty regimens?

Historical Uses of Pumpkin Seeds

Historically, pumpkin seeds have been highly valued not only as a nutrient-dense food source but also for their powerful medicinal properties. In traditional American practices, indigenous peoples used these seeds for both dietary and health purposes, while pressing pumpkin seed oil for various medicinal applications. Pumpkin seeds were known for their anti-parasitic properties, used to expel intestinal parasites such as tapeworms and roundworms—a practice that continues in some cultures even today. The compound cucurbitacin, found in pumpkin seeds, is thought to paralyze parasites, aiding in their elimination from the body.

In 19th-century Europe, herbal practitioners utilized pumpkin seed oil to address conditions like urinary tract issues and gastritis, recognizing the oil's soothing and anti-inflammatory effects. Similarly, in Traditional Chinese Medicine, pumpkin seeds were employed for their ability to support water metabolism, reducing swelling and promoting digestive health.

The versatility of pumpkin seeds and pumpkin seed oil as both a food and medicine highlights their wide-ranging benefits. Folk medicine explored pumpkin seed benefits for immune system support, reproductive health, and gastrointestinal wellness, capitalizing on their rich nutritional profile. This reliance on natural remedies has paved the way for contemporary scientific investigations, which continue to uncover the many advantages of pumpkin seed oil for hair and overall health.

Modern Uses of Pumpkin Seeds

Today, pumpkin seed benefits continue to thrive, finding new roles in science and cosmetics. Its rich fatty acid content, including linolenic acid contribute to hydrated skin and vibrant hair. It’s also a favorite in hair care routines, believed to combat hair loss and promote scalp health. Users appreciate its natural appeal, combining nourishment with manageable application.

Beyond cosmetic uses, science recognizes its potential in health. Research indicates pumpkin seed oil might offer benefits for the urinary tract, including conditions like benign prostatic hyperplasia, and cardiovascular health due to its antioxidant properties, as supported by small scale animal and human studies. Its potential to reduce cholesterol levels and ease menopausal symptoms has also been spotlighted, bringing an age-old remedy into contemporary health conversations.

Pumpkin seed's journey from a traditional kitchen staple to a key player in modern health and beauty underscores its enduring value. As this botanical gem continues to be studied, the prospects for broader applications only seem to grow.

Scientific Evidence Supporting Pumpkin Seed Oil for Hair Health

The research surrounding pumpkin seed oil for hair underscores its significant impact on promoting hair growth and vitality. As a powerhouse of phytosterols, unsaturated fatty acids, and antioxidants, pumpkin seed oil has been shown to effectively counteract the effects of dihydrotestosterone (DHT), a hormone linked to hair follicle miniaturization and hair loss, by inhibiting the enzyme 5-alpha-reductase responsible for DHT synthesis.

Clinical Trials and Findings

Recent studies substantiate the promising effects of pumpkin seeds as both an oral and topical treatment for hair health. For instance, a clinical trial by Cho et al. (2014) demonstrated that oral pumpkin seed supplementation led to a significant 40% increase in hair count over 24 weeks compared to a 10% increase in the placebo group. This increase is attributed to its high levels of β-sitosterol and linolenic acid, which effectively inhibit 5-alpha-reductase, thus mitigating the effects of DHT on hair follicles. Another study documented in the International Journal edited by the Institute of Natural Fibres and Medicinal Plants (2023) showed that pumpkin seed oil exhibits strong anti-inflammatory, antioxidant, and antibacterial properties, making it an excellent option for scalp health and hair follicle vitality.

Additional animal model research (Wargala et al., 2023) noted that topical application of pumpkin seed oil effectively maintained the anagen (growth) phase of hair follicles when exposed to testosterone, showcasing its potential in promoting hair retention even under hormone-induced hair stress.

What are Pumpkin Seed Benefits for Hair?

Pumpkin seed oil offers a nutrient-rich boost, delivering zinc, vitamin E, omega-3s, and antioxidants that strengthen follicles, support growth, and add shine. This natural remedy nourishes the scalp, helping to reduce hair loss and dandruff, making it a powerful, holistic solution for healthier hair.

Promotes Hair Growth

Scientific research points to pumpkin seed oil's potential to stimulate hair growth and curb hair loss. One notable study published in Phytotherapy Research demonstrated that participants who supplemented their diet with pumpkin seed oil, much like avocado oil, experienced a 40% increase in hair regrowth over 24 weeks compared to those who didn't. This finding underscores the oil's promise for those looking to boost their hair's growth vitality.

Reduces Hair Loss

Pumpkin seed oil acts as a natural ally against hair loss by blocking the effects of dihydrotestosterone (DHT), a derivative of testosterone, which is linked to hair thinning and androgenetic alopecia (male pattern baldness). A study highlighted that the oil effectively decreases DHT levels, thereby minimizing its impact on hair follicles. This makes pumpkin seed oil a favorable option for those battling hair loss due to hormonal imbalances.

Improves Hair Density and Strength

Strengthening hair follicles is one of the hallmark benefits of pumpkin seed oil. Rich in essential fatty acids and vitamins, the oil nourishes the hair shaft, leading to increased hair density and enhanced strength. Users report thicker, more resilient strands, especially when considering the dosage of pumpkin seed oil for optimal benefits, as the oil provides deep nourishment, making hair less prone to breakage and split ends.

Enhances Scalp Health

Beyond the follicles, pumpkin seed oil plays a vital role in promoting scalp health and maintaining healthy hair. Its soothing properties help balance sebum production, ensuring the scalp remains neither too dry nor excessively oily. This oil is also rich in zinc and vitamin E, which are essential for maintaining a healthy scalp environment conducive to hair growth.

Fights Dandruff and Scalp Irritation

The antifungal and antibacterial properties of pumpkin seed oil make it an effective defense against dandruff and scalp irritation. By reducing microbial activity on the scalp, this oil alleviates flaking and itching. Users have noted fewer occurrences of dandruff when incorporating this oil into their routine, paving the way for healthier scalp and hair.

Incorporating pumpkin seed oil into hair care regimens could be a strategic move for anyone looking to leverage natural remedies to restore their hair's vigor and vibrancy.

Pumpkin Seed Benefits: Phytonutrient Powerhouse

Pumpkin seed benefits for hair are largely due to its potent profile of oleic acid and linoleic acid—key polyunsaturated fatty acids shown to support both follicle health and scalp hydration, promoting softer, shinier hair. These fatty acids reinforce the hair’s structural integrity, helping reduce breakage and enhancing elasticity for more resilient strands.

The deep orange color of pumpkins is an indicator of their high carotenoid content, particularly beta-carotene, which supports skin and hair health by combating oxidative stress and promoting a healthy glow.

 

Green pumpkins, on the other hand, are known for their high lutein and zeaxanthin content, which are powerful antioxidants that help protect against UV damage and support overall skin health. White and other lighter-colored pumpkins contain lower amounts of carotenoids but are still rich in other phytonutrients like vitamin E and various phenolic compounds that offer antioxidant and anti-inflammatory benefits.

Pumpkin seeds are packed with phytonutrients that offer a wide range of health benefits beyond hair and skin support, contributing to cardiovascular, immune, and hormonal health as well.

• β-sitosterol: A phytosterol that not only helps block DHT, reducing hair thinning and promoting hair growth, but also supports cardiovascular health by lowering cholesterol levels. This makes it beneficial in reducing the risk of heart disease.
• Linoleic and Oleic Acids: These essential fatty acids are crucial for maintaining skin hydration and elasticity, as well as strengthening hair. Linoleic acid supports the skin barrier and reduces inflammation, while oleic acid enhances skin softness and strengthens the hair shaft. Additionally, these fatty acids contribute to heart health by helping to regulate cholesterol levels, reducing the risk of plaque buildup in the arteries.
• Vitamin E (Tocopherols): Pumpkin seeds are particularly high in γ-tocopherol, a powerful antioxidant form of vitamin E that protects against free radical damage. This helps maintain healthy skin and hair and supports immune function by reducing oxidative stress. Vitamin E also plays a role in reducing the risk of chronic diseases by protecting cells throughout the body.
• Zinc: Essential for immune function, wound healing, and skin health, zinc supports the regeneration of cells, particularly beneficial for hair and scalp health. It is also vital for reproductive health, aiding in hormone regulation and supporting prostate health in men.
• Squalene: A natural emollient with antioxidant properties, squalene is known for its role in moisturizing skin and protecting hair from environmental stress. Additionally, it has shown promise in studies for supporting cardiovascular health and reducing the risk of cancers due to its antioxidant and immune-modulating effects.
• Phenolic Compounds (e.g., Caffeic Acid, p-Coumaric Acid): These antioxidants help reduce inflammation and protect cells from oxidative damage, benefiting skin elasticity, reducing hair follicle inflammation, and supporting cardiovascular health by preventing damage to blood vessels. Their anti-inflammatory properties also make them valuable for immune system support and may reduce the risk of certain inflammatory diseases.

Cellular Support & Scalp Health

These phytonutrients serve as a rejuvenating force for hair and scalp health. Oleic and linoleic acids help regulate moisture and improve scalp barrier function, a key factor in fostering strong, resilient hair from the root up. By infusing these nutrients, pumpkin seed oil not only nourishes but strengthens each strand, making it less prone to split ends.

The DHT Blocker Effect

One of the most compelling aspects of pumpkin seed oil for hair is its natural ability to reduce levels of dihydrotestosterone (DHT), a hormone often linked to hair loss in both men and women. DHT is responsible for shrinking hair follicles, leading to hair thinning and, eventually, hair loss. Pumpkin seed oil contains β-sitosterol, a key phytosterol that inhibits the activity of 5-alpha-reductase, the enzyme that converts testosterone into DHT. By effectively blocking this conversion, pumpkin seed oil helps lower DHT levels, which directly supports follicle health and prevents further miniaturization of hair follicles.

This DHT-blocking effect has shown promising results in promoting hair growth and may serve as a natural alternative treatment for androgenic alopecia, commonly known as male or female pattern hair loss (Phytotherapy Research, 2014). By reducing DHT, pumpkin seed oil not only helps to slow down hair thinning but also extends the anagen (growth) phase of the hair cycle, allowing follicles to remain in an active growth state for longer periods.

How To Incorporate Pumpkin Seed Benefits Into Your Routine

When considering pumpkin seed benefits for hair, research suggests that both oral and topical applications offer unique benefits. Recommended oral doses vary, with studies typically administering around 400 mg daily pumpkin seed oil for hair health benefits. For example, a randomized clinical trial found that participants taking 400 mg of pumpkin seed oil daily for 24 weeks experienced a 40% increase in hair count compared to only 10% in the placebo group, making this dose effective for supporting hair growth and reducing hair thinning (Cho et al., 2014).

Sempre Hair Growth Organonutrients made with pumpkin extract 

Topical vs. Oral Benefits for Hair

Topical applications of pumpkin seed oil focus on delivering direct nutrients to the scalp, allowing the active compounds, such as β-sitosterol and linolenic acid, to inhibit 5-alpha-reductase and promote the anagen (growth) phase of hair follicles. In addition, topical pumpkin seed oil benefits scalp health by reducing inflammation and providing antioxidant support, directly strengthening hair roots (Wargala et al., 2023). This approach is often recommended for those seeking to improve scalp conditions, as topical use minimizes systemic absorption, reducing the risk of side effects.

Oral supplementation, on the other hand, delivers systemic benefits, affecting hormone levels throughout the body. In addition to hair growth, oral pumpkin seed oil may support prostate health and reduce inflammation, making it suitable for individuals interested in overall wellness (Hong et al., 2009). However, oral doses can sometimes cause mild gastrointestinal discomfort or itching, though these side effects are infrequent (Gossell-Williams et al., 2006). Unlike topical applications, oral pumpkin seed oil offers a broader impact on hormone regulation but should be monitored to avoid excessive intake.

Discover a couple of easy ways to enjoy the benefits of pumpkin seed oil for hair and skin this season with these DIY recipes.

1. Cider and Shine (Fall Pumpkin Seed Oil Cocktail)

2. Harvest Hydration Mask (Nourishing Pumpkin Hair & Scalp Mask)

• Ingredients:
  • 2 tbsp pumpkin seed oil
  • 1/4 cup canned pumpkin puree
  • 1 tbsp honey
  • 1 tbsp plain yogurt (optional for extra moisture)
• Directions:
  • In a bowl, mix pumpkin seed oil, pumpkin puree, honey, and yogurt until smooth.
  • Apply the mixture evenly to damp hair and scalp.
  • Leave on for 15-20 minutes, then rinse thoroughly and follow with your favorite shampoo and conditioner.

These DIY recipes are simple yet effective ways to incorporate pumpkin oil into your haircare routine.

Expert Insights on Using Pumpkin Seed Benefits for Hair Health

Experts highlight the notable benefits of pumpkin seed benefits for hair health, from promoting scalp vitality to potentially reducing hair thinning. However, like with any supplement, there are a few cautions to consider for safe, effective use. Consultation with a healthcare professional is recommended, especially for individuals with specific health conditions or those on medications such as blood thinners, as pumpkin seed oil’s natural anticoagulant properties could interact with these treatments.

It’s also important to follow manufacturer-recommended dosages for both topical and oral applications, as overuse can sometimes lead to mild side effects, such as gastrointestinal discomfort or skin sensitivity. For those using pumpkin seed oil or extract as part of a broader health regimen, periodic reviews with a healthcare provider ensure it aligns with individual health needs and goals, maximizing benefits for hair and skin health while minimizing risks.

Conclusion

Pumpkin seeds are a remarkable, science-backed solution for those seeking natural ingredients for hair health. With its unique blend of phytosterols, essential fatty acids, and antioxidants, it provides targeted scalp nourishment and potential hair growth benefits by inhibiting DHT. For anyone experiencing hair thinning, dryness, or scalp discomfort, pumpkin seed oil offers a natural, holistic approach that integrates seamlessly into modern hair care routines. The reputation of pumpkin seed benefits continues to grow as the cornerstone in natural hair wellness, backed by research and expert endorsements.

FAQs: Pumpkin Seed Benefits for Hair

1. How do pumpkin seeds help with hair loss?

Pumpkin seeds, particularly in the form of pumpkin seed oil or extract, help combat hair loss by blocking DHT—a hormone linked to hair thinning and follicle shrinkage. Rich in β-sitosterol and other phytosterols, pumpkin seed oil helps inhibit the enzyme 5-alpha-reductase, which is responsible for converting testosterone into DHT. This makes pumpkin seeds an effective natural remedy to support healthier, more resilient hair follicles.

2. Can pumpkin seed oil and extract be used together for optimal hair health?

Yes, pumpkin seed oil and extract can be used together for enhanced benefits. Topical application of pumpkin seed oil nourishes the scalp directly, combats dryness, and provides antioxidants that promote a healthy environment for hair growth. Oral consumption of pumpkin seed extract supports systemic hormone balance and delivers concentrated active compounds that help reduce DHT levels, making the combination a powerful approach for those experiencing hair loss.

3. What is the best way to use pumpkin seeds for hair growth?

Pumpkin seed oil can be applied directly to the scalp 2-3 times a week for localized nourishment, while pumpkin seed extract can be taken as an oral supplement. Research indicates that taking 400 mg of pumpkin seed oil extract daily can effectively support hair health, with studies showing a 40% increase in hair growth over 24 weeks. Consistent use is key for optimal results.

4. Are there any side effects of using pumpkin seed oil or extract?

Generally, pumpkin seed oil and extract are well-tolerated. However, oral consumption may cause mild digestive discomfort or itching in some individuals. Additionally, because pumpkin seeds contain natural anticoagulant properties, those taking blood-thinning medications should consult with a healthcare professional before use.

5. Does pumpkin seed oil work for all hair types?

Yes, pumpkin seeds are beneficial for all hair types. Their rich blend of nutrients—including fatty acids, zinc, and antioxidants—makes this botanical oil especially effective for those dealing with hair thinning or scalp issues. However, their moisturizing and strengthening properties can benefit all hair types, enhancing overall hair health and promoting shine and vitality.

Sources: 

Pumpkin and Pumpkin Byproducts

Aziz, A., Noreen, S., Khalid, W., Ejaz, A., Faiz Ul Rasool, I., Maham, Munir, A., Farwa, Javed, M., Ercisli, S., Okcu, Z., Marc, R. A., Nayik, G. A., Ramniwas, S., & Uddin, J. (2023). Pumpkin and Pumpkin Byproducts: Phytochemical Constitutes, Food Application and Health Benefits. ACS omega, 8(26), 23346–23357. https://doi.org/10.1021/acsomega.3c02176

Pumpkin Seed Oil- cosmetic, food and medical raw material

WARGALA E, CHRZANOWSKA A, BERNATEK-SAMORAJ W, KOT I. Pumpkin (Cucurbita pepo L.) seed oil – cosmetic, food and medical raw material. Herba Polonica. (2023);69(3):7-14. 

Pumpkin seed oil vs 5% minoxidil foam

Ibrahim, I. M., Hasan, M. S., Elsabaa, K. I., & Elsaie, M. L. (2021). Pumpkin seed oil vs. minoxidil 5% topical foam for the treatment of female pattern hair loss: A randomized comparative trial. Journal of Cosmetic Dermatology. 

Pumpkin and Pumpkin By-Products: A Comprehensive Overview

Gavril Rațu RN, Stoica F, Lipșa FD, et al. Pumpkin and Pumpkin By-Products: A Comprehensive Overview of Phytochemicals, Extraction, Health Benefits, and Food Applications. Foods. 2024;13(17):2694. Published 2024 Aug 26. doi:10.3390/foods13172694

Effect of pumpkin seed oil on hair growth in men with androgenetic alopecia

Cho YH, Lee SY, Jeong DW, et al. Effect of pumpkin seed oil on hair growth in men with androgenetic alopecia: a randomized, double-blind, placebo-controlled trial. Evid Based Complement Alternat Med. 2014;2014:549721. doi:10.1155/2014/549721

Beneficial effects of pumpkin seed oil as a topical hair growth promoting agent in a mice model

Hajhashemi V, Rajabi P, Mardani M. Beneficial effects of pumpkin seed oil as a topical hair growth promoting agent in a mice model. Avicenna J Phytomed. 2019;9(6):499-504. doi:10.22038/AJP.2019.13463