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Can Shampoo Really Restore Damaged Hair

author avatar Dr. Eric Berg 03/06/2024

Restoring damaged hair can be intimidating, especially with the overwhelming number of products and treatments claiming to perform wonders.

Learn about the science behind hair damage and learn how to repair your tresses from within. Also, discover how hair loss shampoos may provide some surface-level benefits but are ultimately limited in their ability to restore severely damaged locks.

The Truth About Hair Loss Shampoo

Hair loss shampoos claim to repair damaged hair, but they often only provide a temporary fix by making it appear fuller without addressing the root cause of hair damage.

Most hair loss shampoos contain components that form a coating around the hair, providing an illusion of thickness and fullness; however, this effect is short-lived as shampoo is washed away each time.

Shampoo alone cannot repair damaged hair caused by poor nutrition or excessive heat styling, and many commercial shampoos contain harsh chemicals that strip away natural oils from your scalp and exacerbate existing problems.

While there is debate over whether hair products like Pantene are perfect for your hair, the effectiveness of Pantene shampoo or any other hair repair product largely depends on the type and extent of damage your hair has sustained. 

  • Damaged hair: Split ends or breakage due to chemical treatments or heat tools.

  • Brittle hair: Lacks elasticity and is often associated with protein deficiency in one's diet.

  • Dry hair: Insufficient moisture content leads to frizz and dullness.

Woman with damaged hair

Restoring Hair from the Inside Out

Want to repair damaged hair? Start from the inside out by consuming essential nutrients like fat-soluble vitamins and trace minerals.

Fat-Soluble Vitamins

Vitamins A, D, E, and K are essential for restoring damaged locks. Incorporating grass-fed butter (vitamin A), fatty fish (vitamin D), almonds (vitamin E), and leafy greens (vitamin K) into your diet will help your hair repair existing damage.

Trace Minerals Found in Grass-Fed Animal Products

Grass-fed animal products boast elevated levels of essential trace minerals like zinc and selenium. Including grass-fed meats and dairy products can help you achieve healthy hair.

Key Nutrients for Healthy Hair Growth

Zinc is an essential trace mineral that helps build proteins necessary for robust and healthy hair follicles. Incorporate zinc-rich foods like oysters, red meat, and nuts into your diet to ensure you get enough of this vital nutrient.

Biotin, vitamin H or B7, strengthens hair strands and prevents breakage. Foods like eggs, almonds, and salmon are rich in biotin and can help improve the keratin infrastructure of your hair.

Other Essential B-Vitamins: Niacin (vitamin B3) promotes blood circulation in the scalp, pantothenic acid (vitamin B5) helps prevent hair loss, and vitamin B12 is crucial for red blood cell production that carries oxygen to the scalp.

Insulin Resistance and Hair Health

High insulin levels can damage your hair by blocking nutrient absorption, leading to brittle and dry strands over time. Insulin resistance, brought on by a diet abundant in carbohydrates or being overweight, obstructs the body's capacity to take up fundamental nutrients essential for sound hair growth.

Excess insulin interferes with absorbing vital minerals like zinc and magnesium, crucial for maintaining healthy hair structure.

How to Manage High Insulin Levels for Better Hair Health

  • Limit carbs and sugars to avoid blood sugar spikes.

  • Incorporate low-glycemic foods like leafy greens, nuts, and lean proteins to maintain stable blood sugar levels.

  • Consider the ketogenic diet or intermittent fasting to improve insulin sensitivity.

  • Maintain regular exercise routines to increase insulin sensitivity.

Woman before and after hair growth

Other Tips for Restoring Damaged Hair Naturally

Regular Exercise Routines Supporting Circulation Improvements

  • Aerobic exercises increase blood flow to hair follicles, promoting growth and overall health.

  • Strength training can improve hormonal balance, reducing the risk of insulin resistance that negatively impacts nutrient absorption for healthy hair growth.

Additional Tips for Protecting Your Hair from Damage

Protect your locks externally with these practical tips:

  1. Use a wide-toothed comb or detangling brush on damp hair to prevent mechanical damage caused by pulling and tugging at tangled strands.

  2. Avoid excessive heat exposure from styling tools like curling or flat irons, which can lead to brittle, dry hair. Opt for air drying whenever possible.

  3. Use gentle shampoos free of sulfates and parabens to avoid stripping natural oils from your scalp, leading to dryness.


Hair loss shampoos can only do so much, but a low-carb diet rich in fat-soluble vitamins and trace minerals found in grass-fed animal products can restore damaged locks.

Don't forget about zinc and biotin, which are crucial for protein synthesis and strengthening individual strands, and addressing high insulin levels through proper nutrition and exercise can improve nutrient absorption for better hair health.


1. Can You Repair Damaged Hair?

You can repair damaged hair by improving overall health with a balanced diet, exercise, and stress management.

2. Will Damaged Hair Ever Go Back to Normal?

Damaged hair can return to normal with proper care and attention to underlying issues like nutrient deficiencies and insulin resistance.

3. How to Repair Severely Damaged Hair?

To repair severely damaged hair, consume essential nutrients like fat-soluble vitamins, trace minerals, zinc, and biotin in grass-fed animal products.

4. How to Bring Damaged Hair Back to Life?

Bring your damaged hair back to life by adopting a balanced diet, managing stress, and engaging in regular physical activity to promote healthier growth patterns.

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