Some of you know that I have hormonal imbalance problems for a number of years already (that explains why I'm so cranky at times.. hee hee). I found out I had hyperthyroidism in Dec 2004. I can't figure out if the thyroid problems cause my hormonal problems or the other way round - obviously not a medical-student here. Although my thyroid seems to be in remission at present, other female-related problems persist.
A nurse told me that I should not wear makeup, colour or rebond my hair because chemicals and chemical treatments affect one's hormone levels. Gasp! This advice disturbs me (or horrifies me, in fact) and so I launched into a small research project on the matter.
According to what I read on the internet, it has been a longstanding issue that the cosmetics industry has remained largely unregulated by FDAs around the world. Certain chemicals that made their way into the cosmetics are in fact harmful to health. Two such substances are:
Parabens - which include methyl-, propyl-, butyl-, ethyl-parabens, are very common in many cosmetics products. These are preservatives that inhibit bacteria growth and are used to extend the shelf life of products. Parabens affect or disrupt the endocrine system i.e. they primarily affect hormones such as thyroid, pituitary and adrenal glands etc. [Dear, dear me!]
Phthalates - are a group of chemicals used in products such as body lotions, soaps, shampoos, perfume, nail polish, hair sprays. Some health advocates argue that the use of these chemicals among woman of child-bearing age could lead to birth defects. (Men, you are not safe. Exposure to phthalates could cause sperm damage too...)
I shan't bore you with further chemistry details but they've got my attention there! Naturally for every concern posed by the health advocates, some one will present a counter-claim. Regardless, I investigated all the product labels I could find for my L'Occitane body lotion, Nivea lip balm, Clarins moisturizer, L'Oreal sunblock, Shu Uemura blusher etc. I also went to Watson's to check out the labels of common toiletries. Indeed, many products contain, especially, some form of parabens!

I suppose for decades, woman all over the globe have been using such products and are alive and well. But I begin to wonder if my hormonal problems have been exacerbated by the constant exposure to unsafe chemicals present in my beauty products. However, to ask me to stay away from skincare and makeup is completely out of the question!!! But for the sake of my health, I think I will try to switch to 'safer' products. [Important note: Please don't misunderstand me here. I'm not vain at all. Unfortunately I don't have porcelain skin, so stepping out of the house without foundation and some form of visible eyebrows is a major crime against people who have to see me!]
Over the course of my research, I discovered a cosmetics safety database on the web. You can type in a particular ingredient and it will tell you what harmful effects this ingredient could pose: http://www.cosmeticsdatabase.com/ingredient.php?ingred06=702620. So ladies, before you purchase that must-have new eye shadow, you may want to check this website out first to see if you are putting yourself at risk!