Why Keratin Is Good for Hair, But Lipids Are Even Better

When it comes to hair care, we often hear about the benefits of using products that contain keratin, a protein known for strengthening and repairing damaged hair. While keratin is indeed a valuable component of hair care, there's another player in the field that doesn't get as much attention but can be even more beneficial - lipids. 

Keratin: The Building Block of Hair

Keratin is a fibrous structural protein found in our hair, skin, and nails, comprising approximately 95% of the hair's structure. This protein is responsible for the strength and elasticity of our hair, making it an essential component for maintaining healthy, lustrous locks. Keratin treatments and products have gained popularity over the years for their ability to repair and protect the hair shaft.

Benefits of Keratin for Hair

Strengthens Hair: Keratin treatments can help fortify weak and damaged hair by filling in gaps and cracks in the hair shaft, making it less prone to breakage.

Reduces Frizz: Keratin treatments are known to smoothen hair and reduce frizz, leaving your hair more manageable and sleek.

Enhances Shine: Keratin can give your hair a glossy and healthy appearance by improving the surface texture of the hair strands.

Repairs Damage: If your hair has been subjected to heat, chemical treatments, or excessive styling, keratin can help repair some of the damage.

Lipids: The Unsung Heroes of Hair

While keratin is essential, it's lipids that play a crucial role in maintaining the overall health and function of your hair and scalp. Lipids are a group of fatty substances that form a protective barrier on the hair's surface, preventing moisture loss and maintaining its integrity. In fact, lipids make up about 5% of the hair's structure.

Benefits of Lipids for Hair

Moisture Retention: Lipids help lock in moisture, preventing dryness and promoting hair flexibility and elasticity.

Protection: The lipid barrier shields the hair from environmental damage, such as UV rays and pollutants, preserving its colour and texture.

Scalp Health: Lipids also contribute to a healthy scalp by preventing dryness and flakiness.

Repair and Growth: A lipid-rich environment fosters an ideal condition for new hair growth and can repair damaged hair structures.

The Role of Lipids

The human hair shaft consists of approximately 95% keratin and 5% lipids. While the percentage of lipids may seem small compared to keratin, their role in hair health is significant. Lipids are primarily found in the hair's outermost layer, the cuticle. 

Lipids are distributed along the hair strand to safeguard and shield it from external damage, creating a hydro-lipid barrier when combined with water. This protective layer comprises essential fatty acids, ceramides, triglycerides, and water, which effectively locks in moisture, preventing it from evaporating. Additionally, it shields the cuticles from splitting open and minimizes friction with neighbouring hair strands. Internal lipids serve to seal and bind multiple layers of cuticles, providing lubrication. When this coating is depleted, the cuticle becomes significantly damaged, manifesting as split ends, diminished shine and elasticity, and hair breakage.

Preservation of Hair Structure: The hair follicle produces new hair cells, and lipids play a crucial role in forming the cell membrane.  Lipids are akin to the cement in building construction, with keratin acting as the bricks. The absence of either disrupts the hair's structural integrity.

However, various factors can lead to lipid depletion, including:

Over-washing: Excessive shampooing can strip the hair of its natural lipids, leading to dryness and damage.

Heat Styling: Frequent use of hot styling tools can weaken the lipid barrier, making the hair more susceptible to damage.

Harsh Hair Products: Some hair products with high alcohol content or harsh chemicals can disrupt the lipid balance.

Environmental Factors: Exposure to UV radiation, pollution, and harsh weather conditions can also contribute to lipid depletion.

Given the multitude of responsibilities attributed to lipids, it is essential to maintain their integrity. A few adjustments can ensure their effectiveness.

Preventing Lipid Depletion

To maintain healthy hair, it's essential to take steps to prevent lipid depletion. Here are some tips:

1.  Use a gentle, sulfate-free shampoo and avoid over-washing your hair.

2. Limit the use of heat styling tools and use a heat protectant spray when necessary.

3.  Choose hair care products that are lipid-rich, as they can help replenish the lost lipids and protect your hair.

4. Protect your hair from environmental factors by wearing a hat or using protective sprays.

5. Protect strands from friction and moisture loss at night but sleeping on a silk or satin pillow

In the world of hair care, it's clear that both keratin and lipids are essential for achieving the best results. While keratin strengthens and repairs, lipids play a crucial role in maintaining overall hair health, moisture balance, and protection from external damage. This combination can lead to hair that not only looks better but is healthier and more resilient overall. So, the next time you're shopping for hair care products, be sure to look for the magic combination of keratin and lipids for your best hair ever. With a deeper understanding of the science behind these ingredients and their roles in your hair's structure, you can make informed choices for a more luxurious and healthy mane.