Hair loss is one of the permanent effects caused by constant keratin treatments, while nausea is a temporary side effect since the process can take anywhere from two to four hours to complete. The hair loss is due to the... More »

To apply a keratin hair treatment, wash the hair thoroughly three times, dry it with a clean towel, and apply a quality keratin product. Leave the hair for up to 20 minutes, use heat or a cap as suggested by the manufact... More » Beauty & Fashion Hair Chemical Hair Treatments

Keratin treatments smooth hair for a long period of time, reducing straightening time and making styling easier, and most reviews praise their effectiveness. However, negative reviews tend to look at the prevalence of po... More » Beauty & Fashion Hair Chemical Hair Treatments

After hair is treated by the keratin straightening system, it must not be washed or come into contact with water for 72 hours. During this 3-day period, the hair should not be pulled or clipped back. Anything that can le... More »

Biotin is a water-soluble B-vitamin that has no known side effects when taken in doses up to 10 milligrams. WebMD reports that the vitamin is regarded as safe, but it has no established recommended daily allowance, and f... More » Beauty & Fashion Hair Chemical Hair Treatments

Perming works by inflicting damage to the structure of the hair by applying a solution that break the bonds that hold the keratin on the hair together. Another solution is applied to the hair for the keratin to fuse toge... More » Beauty & Fashion Hair Chemical Hair Treatments

According to WebMD, 5-Hydroxytryptophan (5-HTP) carries one serious side effect, which is the possible development of eosinophilia-myalgia syndrome (EMS), and numerous other less-serious side effects, such as heartburn, ... More » Health Medications & Vitamins Side Effects