Hair Loss Treatments

NORMAL HAIR LOSS
Normal hair growth occurs in a repeating cycle of growth, fall and replacement. At any one time, about 90 percent of scalp hair is actively growing (anagen phase). The other ten percent is either in the transition (catagen) phase or the resting (telogen) phase, waiting to be shed and replaced by a new hair in the next growth phase. One complete cycle of growth, fall and replacement takes from three to five years.

The scalp contains about 100,000 hairs, with slightly more for blondes and fewer for redheads. The average rate of normal hair loss is approximately 35 to 40 hairs per day. Although that’s a small number compared to the total number of hairs on the head, it can be alarming when found in a hairbrush or shower drain. Remember that normal hair loss is 35 to 40 hairs per day.

Hair that is in the catagen or telogen phase is not growing and is called bed-hair. Bed-hair is usually pulled out by brushing, combing or shampooing, but can remain in the follicle until it is pushed out by a new hair in the next growth phase. If a hair is pulled from the scalp, it takes about 130 days before a new hair emerges.

Scalp hair grows faster on women than men. Although individual hairs grow at a constant rate day or night, more falling hair is shed in the morning. Hair growth is also seasonal and reaches a peak in the summer with more falling hair in November.

ABNORMAL HAIR LOSS
Pregnancy disrupts the normal growth cycle of hair. Women usually have less hair loss during pregnancy, but experience sudden and excessive hair loss from three to nine months after delivery. Although this can be traumatic, the growth cycle returns to normal a few months after delivery.

Androgenetic alopecia, commonly called “male pattern baldness” is abnormal hair loss caused by age, genetics or hormonal changes. By age 35, almost 40 percent of both men and women show some hair loss from male pattern baldness.

COSMETICS
Hair loss treatments that claim to make the hair appear thicker or fuller are classified as cosmetics because they claim to change the appearance of the hair. Changing the appearance of the hair is a cosmetic change.

The right shampoo, conditioner and styling aids are essential to anyone who wants to look their best, but even more important to those who suffer from hair loss. Hair loss creates a special set of needs that can be determined with a professional consultation and retail product recommendation.

DRUG TREATMENTS
Hair loss treatments that claim to make the hair grow thicker or fuller are classified as drugs because they claim to change the growth of the hair. Changing the growth of the hair is a physiological change.

Products that claim to grow hair fill the retail shelves and flood the internet and although we might like to believe the claims, Minoxidil (Rogaine) and Finasteride (Propecia) are the only two drugs approved by the FDA to treat androgenetic alopecia.

Minoxidil is a topical medication originally designed to lower blood pressure. Minoxidil is applied to the scalp twice a day, and although it’s greasy and inconvenient, it has been proven to stimulate hair growth. It is sold over the counter (OTC), as a non-prescription drug under the brand name Rogaine. Rogaine is available for both men and women in a 2 percent regular strength and a 5 percent extra strength version. It is not known to have any side effects.

Hair growth is controlled by androgens. Androgenetic alopecia is usually caused by dihydrotestosterone (DHT) that is converted to testosterone by the enzyme 5-alpha-reductase. At sexual maturity, DHT causes the baby (vellus) pubic hair in males and females to be converted to longer, thicker and darker terminal hair. DHT also causes the facial hair of males to be converted to the longer, thicker, darker terminal hair we know as a beard.

Ironically, in androgenetic alopecia that occurs later in life, the same DHT causes the miniaturization of the terminal hair on the scalp converting it to vellus hair. At the same time, DHT stimulates the vellus hair on the rest of the body to become terminal hair that grows in thicker, longer and darker, especially on the upper arms and back.

Finasteride is an oral, prescription drug for men only sold under the brand name Propeca. Finasteride inhibits the production of 5-alpha-reductase, the enzyme that reacts with DHT to cause male pattern baldness. Although Finasteride is more effective and convenient than Minoxidil, possible side effects include weight gain and loss of sexual function. These drugs are available for men only and only by prescription. Women may not use this treatment, and pregnant women or those who might become pregnant are cautioned not to touch the drug because of the strong potential for birth defects.

LOW LEVEL LASER THERAPY
Low level laser therapy (LLLT) is also called red light therapy, cold laser, soft laser, biostimulation and photobiomodulation. Low level laser therapy diodes emit either red light in wavelengths from 630 to 670 nanometers or infrared radiation. In the last ten years, the Federal Drug Administration (FDA) has granted premarket approval to several low level laser therapy devices marketed to consumers for home use. These devices are available as hard and soft head caps, as well as, hand held brushes and large combs.

Although the FDA regulates low level laser therapy devices, FDA approval does not mean that a product is safe or effective. The FDA clears medical devices for marketing as long as they are substantially similar to a product already on the market.

Physicians have mixed opinions on whether or not low level laser therapy is effective. While some completely reject its effectiveness, others believe that low level laser therapy can provide benefit for some men and women. Company trials have been criticized as biased and can’t be relied upon because they are not independent. Individual consumer reports on effectiveness are disappointing.

Additional information about hair loss can be found on the American Academy of Dermatology web site: https://www.aad.org/public/skin-hair-nails

And the FDA website: https://www.fda.gov/

John Halal
john@chemistrysimplified.com

What Do the Terms Natural and Organic Really Mean?

Everything seems to be marketed as natural and organic these days, but are natural and organic products really any better or safer? Although most consumers believe that natural, organic products are pure, healthy and safe and that all chemicals are harmful, according to the Food and Drug Administration (FDA), the terms natural and organic have no meaning at all when applied to cosmetics.

All substances that contain the element carbon are organic. Since all living things contain carbon, the term organic has long been associated with life and has been misused to imply healthful, pure and natural. Natural gas is a natural, organic gas that is colorless, odorless and deadly. The pungent odor of natural gas is added to alert you of the danger. Many natural and organic compounds are toxic.

The oxygen in the air we breathe and the water we drink are inorganic, yet are essential to life. How long could any of us live without oxygen or water? Inorganic ingredients are often preferred over organics because it’s impossible to have an allergic reaction to an inorganic substance.

Inorganic sunscreens (zinc oxide and titanium dioxide) not only perform better, but are also safer than organic sunscreens because they don’t react chemically. Organic sunscreens react on the skin to produce free radicals that contribute to premature ageing and skin cancer. Mineral makeup is popular for the same reason. The inorganic pigments used in mineral makeup eliminate the possibility of an unwanted allergic reaction that could be caused by organic pigments.

Although botanical extracts may conjure up visions of a meadow of flowers, all plants aren’t beneficial and some are poisonous. Poison Ivy, hemlock and arsenic are all natural and organic plants but I wouldn’t want them in my shampoo.

Processing purifies raw materials, removes unwanted contaminants and makes the finished product cleaner and safer. Natural, unprocessed ingredients may contain a variety of unwanted chemicals that require more preservatives and are far more likely to cause an allergic reaction.

We all want the products we use to be safe. Natural or organic products aren’t bad, but they may not be any better or safer and if those products cost more, you may not be getting what you’re paying for. Everything is processed in some way. The questions we need to ask are how are they processed and why?

We welcome your comments and questions.  Please leave your feedback on the Contact Us form.