The Ultimate Guide to Regrowing Hair Naturally in 3 Weeks

A lot of people who are losing hair look for ways to regrow hair naturally in 3 weeks (the sooner, the better though). 

However, when it comes to looking for “natural” remedies, many people turn towards their kitchen cupboards or fridges. The problem is these alternative hair loss therapies aren’t always evidence-based. 

A few studies have been conducted on these natural hair growth remedies, but not all the researches are reliable or conclusive.

Still, you can consider trying some of these therapies. Although, it’s always a good idea to consult a medical professional first. 

What Are Some Natural Remedies for Hair Regrowth in Just 3 Weeks?

Here are a few natural ingredients that can help in hair regrowth, possibly even after just 3 weeks:

Onion Juice 

Other than containing folate, vitamins C, B6, and B9 and minerals like potassium and magnesium, onion juice is rich in sulfur.

Onion juice for natural regrowth

A high amount of sulfur is present in the keratin protein found in the hair. So, the sulfur in onion juice can help improve hair growth.  

One study published in The Journal of Dermatology compared topical crude onion juice with tap water for patchy alopecia areata. 

Just two weeks after application, hair growth was observed in the group applying onion juice (twice a day). After six weeks, hair growth was seen in 86.9% of the participants. 

Additionally, onion juice can increase blood flow to the scalp and fight off infections which can also help with hair growth. 

You can use onion juice for hair by diluting it in water, and then letting it sit on your scalp for around 15 minutes. Afterwards, make sure to wash it off with a shampoo 

It may prove to be quite effective to regrow hair naturally in 3 weeks at home

Green Tea 

Another natural ingredient that’s quite popular for hair regrowth is green tea. And it may help to regrow hair naturally in 3 weeks in females and males.

Green tea for natural hair growth

Epigallocatechin gallate (EGCG) is an antioxidant and anti-inflammatory compound in green tea that may stimulate growth.

A study published in The Journal of Clinical and Aesthetic Dermatology also indicated that it may inhibit the 5-alpha reductase enzyme (which converts testosterone to dihydrotestosterone and causes testosterone hair loss/androgenetic alopecia). 

However, the study had confounding variables, so it wasn’t reliable. 

Nevertheless, you can consider trying it out. You can prepare a rinse to wash your hair with it. Let it sit for about 10-15 minutes before shampooing your hair. 


Turns out, your hair might like a cup of it too. 

Caffeine for hair growth

According to a study published in the International Journal of Dermatology, caffeine can counteract testosterone’s effects on hair. During the research, scalp biopsies of patients with male pattern hair loss were taken and cultivated in vitro. 

Just 120 hours after a very small percentage of caffeine was added, the elongation of the hair shaft was observed. 

However, caffeine for hair may help with more than just androgenetic alopecia. 

Recently, a study published in the British Journal of Dermatology showed that caffeine may counteract and even prevent hair loss induced by stress. 

Caffeine is definitely one of the more promising ingredients if you’re looking for ways to regrow hair naturally in 3 weeks at home

You can prepare a rinse or buy hair products that have caffeine in them. While caffeine supplements are also available, do not take them without consulting your doctor. 

How To Regrow Thinning Hair Naturally In 3 Weeks?

Certain natural remedies can help thicken the shaft of the hair as well. 

You might not get results exactly after 3 weeks, but they may still be able to help you.

Scalp Massages 

Besides providing relaxation, scalp massages can actually help increase the thickness of your hair. 

Scalp massage for thick hair

One study published in ePlasty found that scalp massages increased the thickness of hair in non-balding men. 

And according to the researchers, it’s because the “stretching forces” from the massages change the “gene expression in human dermal papilla cells.”

These changes took place with 4 minutes of massages every day for 24 weeks. However, this study was quite small – only 9 men participated. 

Keep in mind that scalp massages can also improve blood flow to the scalp. With more nutrients and oxygen going to the follicles, hair growth can also be stimulated. 

A survey in Dermatology and Therapy found that self-assessed androgenetic alopecia sufferers saw improvement in their hair after doing scalp massages. 

However, the changes only became apparent after 50 hours of massage. So, the large time investment may act as a deterrent.

Still, it’s one of the easier regrow hair naturally in 3 weeks home remedies


Ginseng is another herb that’s considered beneficial for hair. 

Different researches indicate different ways in which red ginseng, in particular, can promote hair growth and increase thickness. 

For instance, it can increase the production of the dermal papilla and prolong the duration of the anagen (growing) phase of the growth cycle. 

In fact, it can also make follicles enter the anagen phase from the telogen phase (resting).

While it may not grow hair naturally in 3 weeks, you can consider trying it out as well. 

Ginseng-containing hair products and oils are available in the market. Its oral supplements are also sold but they can cause some side effects. So, make sure to talk to your doctor first. 

Platelet-Rich Plasma (PRP)

In theory, it’s still a natural remedy since it uses the patient’s own blood. 

Platelet-rich plasma injections involve drawing the blood of the patient and putting it in a centrifuge to obtain the platelet-rich concentrate.

PRP injection thick hair

These injections increase blood flow to the scalp and even stimulate the growth of new hair. Additionally, however, it also increases the thickness of the hair shaft.

In a study published in Dermatologic Therapy, PRP significantly increased hair diameter in males and females with androgenetic alopecia.

However, it usually takes about 3 months to see the results of this treatment. 

What Are The Effective Tips For Regrowing Hair Naturally?

Here are some other natural remedies that you can use to regrow hair (which may take longer than 3 weeks). 

Olive Oil

Rich in antioxidants and fats like omega-3s and -6s, olive oil can provide nutrition and protection to the hair.

Olive oil for hair growth

Additionally, though, it can lead to hair growth. In truth, there’s not enough scientific evidence to back its efficacy. 

There’s one case study, however. Published in the Case Reports in Dermatology, a patient’s treatment for psoriatic alopecia was supplemented with olive oil. She was able to regrow 75% of her hair 3 months after the treatment. 

But keep in mind that it wasn’t just olive oil that helped with hair growth. 

But since it can be worth a shot, you can try massaging it into your scalp before shampooing. 

Rosemary Oil 

Rosemary oil is another popular home remedy for hair regrowth. It’s believed to work by increasing blood flow to the scalp. In turn, that would get more nutrients and oxygen to the follicles.

Rosemary oil for natural growth

A study with regard to its effectiveness was published in the journal: SKINmed. The researchers of that study concluded that rosemary oil was just as effective as 2% minoxidil. 

However, that study isn’t too reliable or definitive because there were problems with its methodology. 

If you’re considering using it, you can massage it into your scalp (after mixing it with a carrier oil like coconut). Or you can mix a few drops of it into your shampoo or conditioner. 


Garlic is also believed to promote hair regrowth by increasing blood flow to the scalp. 

However, just like with other natural therapies, there’s very limited scientific evidence on its effectiveness. 

There’s one study published in the Indian Journal of Dermatology, Venereology and Leprology that showed that garlic gel improved the efficacy of topical betamethasone for the treatment of alopecia areata. 

Oils of garlic can also be used. Or you can make a mask of it at home by crushing a few cloves and mixing it with a carrier oil.

Saw Palmetto 

Saw palmetto extract is very popularly used in hair loss supplements. That’s because it can also inhibit the activity of the enzyme 5-alpha reductase. Therefore, it may improve hair density if you have androgenetic alopecia. 

According to a review published in Skin Appendage Disorders, saw palmetto may help with androgenetic alopecia or telogen effluvium. There is, however, insufficient evidence regarding its efficacy and long-term adverse effects.

Typically, saw palmetto for hair loss is taken as a supplement, but you can find shampoos, conditioners, and serums containing this ingredient. 

Apple Cider Vinegar 

Another kitchen staple, apple cider vinegar can also help clean the scalp out and help with hair growth. It can also make your hair shinier by lowering the pH.

Apple cider vinegar for healthy hair

However, it’s extremely important to dilute it before using it. It’s highly acidic, and if you apply it raw, it can burn the skin. 

Pumpkin Seed Oil 

Pumpkin seed oil is full of nutrients such as fatty acids, vitamins, tocopherols, phytosterols, and carotenoids. While that can nourish the hair, some studies also show that it can block the activity of the 5-alpha reductase enzyme. 

For instance, after receiving 400mg of pumpkin seed oil every day for 24 weeks, those with male pattern baldness saw a 40% increase in hair count – published in Evidence-Based Complementary and Alternative Medicine

If you want to try it, you can consider applying it to your scalp. However, it’s also available in supplement form. 

Keep Your Scalp Clean 

To allow your hair to grow naturally, you need to keep your scalp clean.

Sebum, dust, sweat and hair products can result in a build-up on the scalp, which can clog the pores and impact hair growth.

To avoid this from happening, make sure to wash your hair, and consider exfoliating your scalp if you use a lot of hair products. 

Manage Stress 

There are many different ways in which stress can cause hair loss. For one, it can trigger telogen effluvium. Secondly, it may even act as a potential trigger for alopecia areata. 

For this reason, it’s important to look for ways to manage stress. You can consider trying meditation, exercising, deep breathing, and doing things that you enjoy.

Yoga for healthy hair

It’s important to take care of yourself. For instance, you should avoid staying up late. Lack of sleep can also cause hair loss

Be Gentle With Your Hair 

For hair growth to take place normally, you should also practice gentle hair care. 

You shouldn’t tug on your hair too much or wear tight hairstyles. 

If it’s quite knotty, take the hair above the knots in your hand and then brush it so that it does not pull on the roots.

Other than that, don’t dye or bleach your hair excessively as that can be quite damaging as well. For the same reason, avoid using too many heat-styling tools. 

And make sure to use gentle hair products that don’t contain a lot of fragrances and harsh chemicals. 

Doing these things, you might not even have to look for ways to regrow your hairline naturally in 3 weeks

What Is The Role Of Nutrition In Natural Hair Regrowth? 

Building blocks for hair come from the food you eat. Therefore, your nutrition plays a very important role in normal growth and development. 

If you’re deficient in a particular nutrient, it can even trigger hair loss due to telogen effluvium (crash diets do that). 

That’s why it’s important to have enough proteins, iron, vitamins, and minerals like zinc in your diet. Some of the foods that are good for your hair include:

  • Fish 
  • Nuts 
  • Beans 
  • Leafy greens 
  • Red meat 
  • Chicken 
  • Legumes 
  • Oysters 
  • Shellfish 
  • Eggs 
  • Avocados 

Keep in mind that supplements only help if you are deficient in a particular nutrient. They won’t do anything for you otherwise. 


Whether it’s a remedy to regrow hair naturally in 3 weeks for males or females, a lot of it can be found at home. 

However, the problem is that if something’s “natural,” it doesn’t automatically mean that it’s going to work (or even good for you). Still, many people like to try them out because they’re easily accessible and cheap. 

The problem is that a lot of these (in fact, most) of these natural regrowth remedies do not have sufficient scientific evidence. A few studies exist, but they are either animal models, not placebo-controlled, have a poor methodology, have small sample sizes, or are invitro. So, you need to take their results with a grain of salt. 

For permanent hair loss, you can consider a hair transplant. But it would be wrong to say that with that you can regrow hair naturally in 3 weeks in Turkey. That’s because the results take 12-18 months to show. Therefore, for a proper treatment plan, make sure to consult a doctor. 

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