The Science Behind Healthy Hair

The Science Behind Healthy Hair

IntroductionWhat does Healthy Hair Look Like?What is the Structure of the Hair Like?Shampoo and Conditioner Go Hand-in-HandThe Demand for Natural and Sustainable MerchandiseReferencesFurther Reading

What is wholesome hair and what’s the science behind it? Here we talk about the construction of the hair and its propensity to exhibit a wholesome look or in any other case. Why is it that our locks can seem lackluster?

Healthy hair. Image Credit: Prostock-studio/

A greater understanding of the pure properties of our hair has led us to using conditioning remedies to higher handle and enhance its look. In latest years we’ve witnessed an growing demand for pure and sustainable hair-care merchandise. Here we take a more in-depth have a look at using vegetation in haircare.

What does wholesome hair appear to be?

Healthy wanting hair is usually regarded as easy and glossy wanting versus uninteresting, coarse and frizzy. The virtues of smoothness and shine relate to hair floor properties. Clean reduce or tapered ends are additional signifiers of well being and relate to the hair cortex.

Among the the reason why an individual is perhaps left grappling with a less-than-healthy wanting set of locks embrace extra styling and beauty remedies, comparable to using chemical dyes or bleaches. Here chemical harm might happen to contribute to a uninteresting, frizzy, and lackluster look of the hair. Furthermore, age-related modifications comparable to pure greying or androgenetic alopecia (hair loss in older males) may end up in lack of shine and smoothness.

To maintain our hair wanting wholesome includes the coordination of a posh set of components; an interaction between medical and organic components, scalp-care habits, hair care procedures and environmental components. Cosmetics are used to change the bodily and mechanical properties of the hair, which in flip relies on inside construction and protein structure. The hair floor when noticed as “structured” on the molecular stage has implications for the design of eco-friendly and sustainable substances and formulations for each shampoos and conditioners and these merchandise have witnessed an increase in client demand in recent times.

What is the construction of the hair like?

The construction of hair consists of an outermost hydrophobic layer together with a cortex. Taken collectively these layers confer the coveted bodily properties of luster (shine) and quantity (physique) needed for the designation of hair “well being.”

The hydrophobic lipid epicuticle layer contains flattened overlapping cuticle cells. The regular cuticle is easy in look and permits for the reflection of sunshine. Meanwhile, the internal cortex is made up of carefully packed spindle-shaped cells stuffed with keratin filaments. Permanent modifications happen within the cortex when hair is uncovered to remedies comparable to coloring or procedures comparable to curling or straightening.

Shampoo and conditioner go hand-in-hand

Shampoo works as a cleanser to take away extra oil, sebum, and grime. However, when used alone it leaves moist hair tangled, troublesome to handle and susceptible to fizziness upon drying. A poor combing approach could cause mechanical stress and lead the outermost covalently sure lipid layer to be eliminated, leaving the hair floor hydrophilic and ionized.

An answer to this downside is the appliance of conditioning remedies to the hair after shampooing or combining shampoo and conditioner right into a single utility ––a well-worn time-saving maneuver. The problem in both case (shampoo + conditioner or a formulation by which the 2 are mixed) is to keep up conditioning substances on the floor of the hair after the removing of the cleaning formulation. The commonest conditioning substances include cationic surfactants, cationic polyelectrolytes, lipophilic conditioners (comparable to oils, pure waxes, fatty alcohols) and silicones.

Shampoo works as a cleanser to take away extra oil, sebum, and grime. Image Credit: Mr.Cheangchai Noojuntuk/

The demand for pure and sustainable merchandise

The beauty trade has sought to cater to calls for for extra pure and sustainable merchandise. The massive problem right here is to have the ability to change conventional low-cost surfactants with new biosurfactants and for the same value. Great strides have been made on this path utilizing inexperienced science rules and lots of new substances are these days eco-friendly.

In the seek for extra pure options, there was the latest growth of strong shampoos which harbor some novel and attention-grabbing substances. These are primarily based primarily on clays, herbs, or flours, as an alternative choice to conventional washing bases, mixed with the standard artificial surfactants and different widespread substances.

There are a number of benefits of strong shampoos over conventional formulations, comparable to amenability to straightforward transportation and improved microbiological stability (the presence of water within the composition of conventional shampoos necessitates using extra preservatives).  Here subsequent we’ll flip to deal with using herbs.

The use of herbals for cleaning the hair has been recognized since time immemorial. In latest instances there was a resurgence in using herbals along with the growing development in favour of pure, uncooked supplies. Herbal merchandise are additionally favored as a result of they provide the added benefits of being low value, in addition to proffering a low threat of negative effects.

An entire plethora of vegetation has been found to be useful for our hair. The advantages are conferred by way of such sought-after elements as nutritional vitamins, amino acids, sugars, glycosides, bioflavonoids, phytohormones, fruit acids and important oils. The problem lies within the number of these pure substances, along with the appearance of novel formulation strategies.

Although these new formulations comprise pure elements from which we would connote a way of safety, it stays crucial they’re, in actuality, secure and environment friendly for long-term use. Many obtainable natural shampoos nonetheless depend on artificial substances, although the formulation of ‘pure’ shampoos utilizing solely pure substances is now recognized to compete with conventional shampoos of their much-desired traits of foaming, delicate detergency, and strong content material.


Gubitosa, J. et al. 2019. Hair Care Cosmetics: From Traditional Shampoo to Solid Clay and Herbal Shampoo, A Review. Cosmetics. Doi: 10.3390/cosmetics6010013.
Luengo, G. et al. 2020. Surface Science of Cosmetic Substrates, Cleansing Actives and Formulations. Advances in Colloid and Interface Science. Doi: 10.1016/j.cis.2021.102383.
Sinclair, R. 2007. Healthy Hair: What Is it? Journal of Investigative Dermatology Symposium Proceedings. Doi: 10.1038/sj.jidsymp.5650046.

Further Reading being/The-Science-Behind-Healthy-Hair.aspx

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