What are we talking about?
Parabens are chemicals derived from petroleum, that have been used in food and cosmetics since the 1950s to prevent bacteria and act as a preservative.
The positive effects of silicone in hair care are plenty, starting with the fact that silicone can actually make hair that is dry and damaged look and feel healthy and strong. It also gives hair a slippery-when-wet feel because of its hydrophobic coating.
Recent studies have shown microscopic pictures of scalps from people using shampoos with silicone showing silicon build-up around the follicles, this means that the silicone is physically blocking off the new hair growth, which can dramatically impact the natural regrowth cycle of your scalp.
Even Scarier Cons
If hair-loss wasn’t enough itself to make you change your hair-care habits, we have some scarier news. A class of silicones known as cyclosiloxanes is drawing attention from the research community, who has begun investigating concerns about whether they can cause cancer or disrupt the endocrine system. The research has been made on animals and in vitro. Thus it is not entirely clear what the risks to humans are. It will take a while for the scientific community to have conclusive information about the health effects.
But why take the chance?