Secrets Dermatologists Won’t Tell You About Hair Care

Secrets Dermatologists Won’t Tell You About Hair Care

Feb 05, 2025GĂ©raldine Poukens

Most of us dream of having thick, shiny, and healthy hair, but no matter how many expensive products we try, hair issues just don’t seem to go away. Hair fall, dandruff, dryness, greasiness, split ends, the list goes on!

What if I told you that some of the best hair care secrets aren’t the ones your favorite shampoo brand advertises but rather those that dermatologists know but rarely talk about? Here are some hidden truths about hair care that could change the way you treat your hair forever.

1. The Magnesium Deficiency You Didn’t Know You Had

Magnesium is a mineral that your hair desperately needs, but most people are unknowingly deficient in it. If you suffer from excessive hair fall, slow growth, or weak hair, a lack of magnesium might be the reason.

Magnesium plays a crucial role in reducing calcium buildup on the scalp. Too much calcium can clog hair follicles, making your hair brittle and more prone to falling out. Including magnesium-rich foods like spinach, almonds, and pumpkin seeds in your diet can help. Also use a Magnesium Shampoo & Conditioner for best results.

2. Shampoo: Are You Overwashing Your Hair?

Most people shampoo their hair too often. If you wash your hair every day, you might be stripping your scalp of its natural oils, leading to dryness and increased oil production (yes, that’s why your scalp gets greasy so quickly after washing!).

Dermatologists recommend washing your hair only 2-3 times a week, depending on your hair type. For those with curly or dry hair, even once a week may be enough. When using shampoo, always focus on cleansing the scalp rather than the hair strands. This helps in removing excess oil, dirt, and product buildup without drying out your hair.

3. Conditioner: You’re Probably Using It Wrong

A good Conditioner is a must for soft and manageable hair, but most people apply it incorrectly. The biggest mistake? Applying conditioner to the scalp.

Conditioner is meant for the hair strands, especially the ends, not the scalp. Applying it to the roots can clog hair follicles, causing buildup and even hair thinning. Always apply conditioner from the mid-length to the ends of your hair, leave it for a few minutes, and rinse with cool water to seal in moisture.

4. The “Expensive Product” Trap

Most people believe that the more expensive a product is, the better it will be. But that’s not always true. Many drugstore shampoos and conditioners contain the same active ingredients as high-end brands.

Instead of looking at price tags, focus on the ingredients. Avoid harsh chemicals like sulfates, parabens, and artificial fragrances. Look for nourishing ingredients like aloe vera, coconut oil, argan oil, and biotin.

5. Your Scalp Needs Exfoliation Too

Just like your face, your scalp accumulates dead skin cells, oil, and product buildup over time. A clogged scalp leads to dull, lifeless hair and even hair fall.

Dermatologists recommend using a gentle scalp scrub or a clarifying shampoo once every two weeks to detoxify your scalp. If you prefer natural options, you can try a DIY scrub made of sugar and coconut oil.

6. Heat Styling is Ruining Your Hair

We all love sleek, straight hair or bouncy curls, but excessive heat styling can seriously damage your hair. Frequent use of flat irons, curling wands, and blow dryers weakens the hair structure, leading to split ends and breakage.

If you must use heat tools, always apply a heat protectant spray first. Try to let your hair air-dry as often as possible, and if you style your hair daily, switch to heat-free methods like braiding for waves or using rollers.

7. Stress and Hair Loss Are More Connected Than You Think

One of the most overlooked reasons for hair fall is stress. When you’re stressed, your body releases hormones that push hair follicles into a resting phase, leading to excessive shedding.

To combat stress-related hair loss, practice relaxation techniques like yoga, meditation, or deep breathing exercises. Getting enough sleep and engaging in activities you enjoy can also make a huge difference in your hair’s health.

8. Silk Pillowcases Can Save Your Hair

Cotton pillowcases create friction that causes hair breakage and frizz. A simple switch to silk or satin pillowcases can prevent hair damage while you sleep. Silk also helps retain moisture in your hair, reducing dryness and split ends.

9. Diet Plays a Bigger Role Than You Think

What you eat directly affects your hair. A diet low in essential vitamins and minerals can lead to dull, lifeless hair. To improve hair growth and strength, make sure you consume:

  • Protein: Found in eggs, fish, and beans, protein is essential for hair structure.
  • Iron: A deficiency can cause hair thinning. Include leafy greens, red meat, and lentils.
  • Omega-3 Fatty Acids: Found in salmon, walnuts, and flaxseeds, they keep hair hydrated.
  • Biotin: A key vitamin for hair growth, present in nuts, seeds, and eggs.


10. Regular Trims Don’t Make Hair Grow Faster, but They Prevent Split Ends!

Many people believe that trimming their hair frequently will make it grow faster, but this is a myth. Hair growth happens at the scalp, not the ends. However, regular trims help maintain the health of your hair by preventing split ends from worsening. When left untrimmed, split ends can travel up the hair shaft, leading to breakage and a thinner appearance.


By cutting off split ends every 6–8 weeks, you can keep your hair looking fuller and healthier. While trims don’t affect growth speed, they prevent damage, allowing your hair to grow longer without breaking or appearing frayed.


Revealing the Hidden Truths: What Dermatologists Really Think About Hair Care

Dermatologists might not always reveal these secrets, but now that you know them, you can take better care of your hair. Small changes, like drinking more water, using the right products, eating a nutrient-rich diet, and avoiding excessive heat styling, can transform your hair over time.

Instead of chasing after expensive treatments, start with these simple, dermatologist-approved hair care tips. Your hair will thank you!



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