Vitamin D Deficiency: Why is My Hair Growing Back While on Chemo


Intro to Vitamin D Deficiency: Why is My Hair Growing Back While on Chemo

Chemotherapy is designed to kill cancer tissues, which are categorized as rapidly dividing cells. This means that the cells duplicate in 12-72 hours. Unfortunately, chemotherapy doesn’t know how to tell the difference between the cancer and another set of rapidly dividing cells called hair cells! 

This is the basic explanation of hair loss during chemotherapy. 

AFTER chemotherapy, it takes time for the chemo drugs to be detoxified from your body once you have received your last chemotherapy treatment.

But some people find a surprise along the way and ask… Why is My Hair Growing Back While on Chemo?!!

Some will begin seeing some thin, fuzzy hair, and some just thin out, yet don’t lose their hair completely.

Of course, how quickly your hair grows back varies from person to person, whether during or after chemotherapy. 


This is where the individual part kicks in. 

For example, cold capping which is to slow the circulation of blood to the follicles can go a long way in minimizing the amount of chemo that would see those rapidly dividing cells and kill. 

Another factor is that a person’s nutritional level could be optimum with no deficiencies, and in fact, an overabundance of the right nutrients getting “in the way” in a good way!


When the chemo is no longer being administered so as to kill rapidly dividing cells within days, the hair follicles, so long as they have not been permanently damaged. At that point, they start their rapidly dividing process again. 

By the way, the 68 days after the last chemo treatment is critical. (more about that…click here.)

Other variables include is what is ON the scalp and hair during chemo treatments. If the scalp is covered with silicones, acrylates and cosmetic coatings, those follicles are compromised. Thus, more hair loss. 

For those doing ALL the right things, this might be the secret to the chemo not affecting hair loss as dramatically, and therefore the notice of hair growing back during chemo!

What you do to help detox and what you allow on your scalp and follicles can make the critical difference between good results, excellent results, or permanent follicle shutdown….thus permanent hair loss.

And, before we go any further, we must tell you we are not medical professionals, nor are we giving any medical advice. HOWEVER, by the end of this article, you will understand more about hair growth, because that’s our specialty at Belegenza, and
we’ve assisted countless people with GREAT results.

Like any other part of our body, our hair needs a variety of nutrients to be healthy and grow. Vitamin D is one of the important nutrients for healthy hair and may be a “secret” that makes a huge difference. Nevertheless, don’t count on JUST vitamin D.
Inventory your complete intake and take action accordingly. 

Here’s why starting with vitamin D might be a GREAT place to start

Vitamin D metabolizes keratinocytes in the skin.

Keratinocytes are skin cells that process keratin, a protein in hair, nails, and skin.

When the body is deficient in vitamin D, then the keratinocytes in the hair follicles can’t regulate hair growth and shedding properly; leading to slow growth and increased shedding.

Vitamin D Deficiency: Why is My Hair Growing Back While on Chemo

Those with a deficiency in vitamin D may have no symptoms, or their symptoms may be nonspecific and change over time. It’s important to note, that we are not medical professionals, so we don’t give any medical advice or make claims. It’s best to have your doctor do a blood test to check your vitamin D levels.

A lack of sunlight or not eating enough foods containing vitamin D are the common causes of a deficiency. Of course, those suffering from an underlying condition such as Crohn’s disease or Celiac disease may be deficient because they prevent the body from completely absorbing nutrients.

There are certain medications that cause the body to break down vitamin D before it can be used, so those medications may cause a deficiency in vitamin D. Some of those medications are antifungals, glucocorticoids, HIV medications, and anticonvulsants.

Supplementing with vitamin D supplements could help if you are lacking vitamin D.

Conclusion to Vitamin D Deficiency: Why is My Hair Growing Back While on Chemo

The best defense against hair loss is eating foods rich in vitamin D and spending 15-20 minutes outside per day.

Vitamin D Deficiency and After Chemo Hair Loss can be improved with attention to your diet. It is a great idea to eat the flesh of fatty fish (such as trout, salmon, tuna, and mackerel) and fish liver oils given they are among the best sources of vitamin D.

By adding a vitamin D supplement to your routine  you can support your Vitamin D intake goal as well.

Supplements come in various forms. Some are taken daily, once a week, or once a month.

It’s important to have your doctor do a blood test to check your vitamin D levels.

If your levels are low, then your doctor will do a blood test every few months to monitor your vitamin D levels.

A lack of vitamin D can leave hair sparse and increases brittleness which requires gentle treatment so you don’t experience further hair loss and breakage.

To ensure you are growing your best hair possible,
you must use gentle, natural, and nourishing hair care products.
like Belegenza Natural Hair Care.

Make sure what products you choose are SLS (sodium laurel sulfate) free and chemical-free and nasties free. AND most importantly, like all Belegenza products, be sure you avoid silicone and its dastardly derivatives that can seep down into the follicle to choke the hair growth and disrupt the anchoring molecules of the hair.
Be sure to PRINT “12 Everyday Things Slowing Hair Growth: Thinning Hair ReversalFREE info.

Belegenza Natural Hair Care has taken the guesswork out of which hair care
products are right for you.

Belegenza continuously researches & uses ingredients that
always provide you with the best and safest possible.
Check out the Restore Hair: Dry, Brittle, Split Ends | Made Flexible Again! package for your hair and scalp needs.

Healthy hair starts with a healthy scalp!

By the way, did you know that with your order, you get personal access to Alan & Cheryl, creators of Belegenza?  You’ll recieve their phone/text number for private conversations so that
you get the best results and service possible. 

What other company does that? 

Only Belegenza, Alan & Cheryl!

So, if you’re asking “Why is My Hair Growing Back While on Chemo,”….Congratulations! 

If you are about to start chemotherapy, you know have more chances of having your hair growing back while on chemo!

If you are finished with chemo, congratulations!  Be sure to learn more about the “68 Day Critical Window for Hair Growth vs. Permanent Hair Loss.”

No matter where you are, if you really care about your best hair, we will help you. 

Remember, you will receive our personal phone/text for private service! 

Take me to the Chemo Premium Care Now Package

Take me to the Premium Chemo Hair Growth Package NOW!

Vitamin D Deficiency and After Chemo Hair Loss, silicone free,  Vitamin D Deficiency and After Chemo Hair Loss, gluten free shampoo, Vitamin D Deficiency and After Chemo Hair Loss, Why is My Hair Growing Back While on Chemo, Why is My Hair Growing Back While on Chemo


Your Trusted Brother & Sister Hair Growth Experts,
Alan & Cheryl

chemo and hair loss, chemo hair loss, thin hair after chemo, menopause and hair loss, gray shampoo, grey shampoo, best shampoo for natural grey, post partum hair loss
Cheryl & Alan on the set of Rizzoli & Isles

Tags: Vitamin D Deficiency and After Chemo Hair Loss, silicone free,  Vitamin D Deficiency and After Chemo Hair Loss, gluten free shampoo, Vitamin D Deficiency and After Chemo Hair Loss, Why is My Hair Growing Back While on Chemo, Why is My Hair Growing Back While on Chemo


OFFICIAL Guide to Hair Growth

Menopause and Hair Growth EXPOSED: Lose the Fear of Hair Loss

Menopause Hair Loss Menopause and hair loss, Menopause Hair Growth Belegenza Growout , Hair loss during menopause
Definitive Guide Before, During & After Menopause Hair Loss & Hair Growth

by Alan Eschenburg & Cheryl Wright,

MSRP $29.95.
Order your FREE copy now!

Vitamin D Deficiency: Why is My Hair Growing Back While on Chemo

FREE of  “the nasties!”

What are the nasties?

  • salt
  • gluten
  • fillers
  • silicones
  • parabens
  • pesticides
  • phthalates
  • petrolatum
  • artificial dyes
  • formaldehyde
  • harmful sulfates(sls)
  • …..and more!

PETA Certified (People for the Ethical Treatment of Animals)

 ( not just a cute logo…a prestigious stamp of approval!)

Fine hair? Tinted? Indescribable damage?  If you have found yourself on the “TRY ANYTHING” wheel, it may be that silicone and synthetic products just can’t quite cover up the damage that has accumulated coupled with hormonal influences on the hair’s natural processes.   As Belegenza begins to purify your hair from these slick cover-ups, the true damage may be revealed and for the first few applications, your hair may tangle, feel dry or more brittle.  This is temporary, as the micro-conditioning agents make their way INTO the damage sites.  Keep going.  It’s temporary, and you’ll be glad you did! Not only that, we’re here to assist you through the process.  You can always start the conversation with “Alan-bot” who should have already popped up to help! If not, feel free to contact us at .

Success Stories

I used your system a couple years ago following my chemotherapy. I never lost my hair completely as my treatment was considered mild. I was pleased with the results but went back to my old shampoo after my hair seemed to recover. Slowly my hair has seemed to thin again, not as bad as during chemo but it’s definitely not like it was after chemo stopped & I had been using your products. I’m going to reorder... Thank you, I’m looking forward to getting back to your shampoo & conditioner on a permanent basis.
Johan H
“After I completed chemo I was very ready to see my hair start to come back and it was taking its time. I asked my oncology office if they had suggestions and one of the nurse practitioners said to use natural products and that other patients had had good luck with Belegenza. I immediately bought the Belegenza GrowOUT shampoo, RoMANce conditioner and GrowOUT scalp energizing spray. My hair started coming in faster, fuller and softer than expected. I am so grateful to have your products as part of my healing journey as this has helped me feel like myself again. Thank you so much!”
Kelly A
Southern California
I’m using the grow out suite of products (years of chemo and more in the future) I love every single product and my hair is growing! I’ve been using grow out for 6-9 months. Now that I’ve gone to my natural silver Im wondering if I can start using the grey hair products. Thanks!
Rita K


*Information on this site is provided for informational & entertainment purposes only and is not meant to substitute for the advice provided by your own physician or other medical professional.

The results reported may not necessarily occur in all individuals. 

BELEGENZA LLC and KEITH ESCHENBURG INC is providing this site and its contents on an “as is” basis and makes no representations or warranties of any kind with respect to this site or its contents. Except as specifically stated on this site, neither BELEGENZA LLC and KEITH ESCHENBURG INC nor any of its directors, employees or other representatives will be liable for damages arising out of or in connection with the use of this site.

This is a comprehensive limitation of liability that applies to all damages of any kind, including (without limitation) compensatory, direct, indirect or consequential damages, loss of data, income or profit, loss of or damage to property and claims of third parties. *These statements have not been evaluated by the Food and Drug Administration. This (these) product(s) is(are) not intended to diagnose, treat, cure, or prevent any disease, nor is any growth claimed. Individual results may vary.