Keratin treatments


How bad are they during pregnancy? What was your experience? And before anyone throws down the formaldehyde card, I am looking for honest feedback based on past experiences. I've read up on it already, but in a world where everything and anything is toxic, really, how much of it is theory and how much is true? There are varying opinions about "everything in moderation" from caffeine to alcohol, so can one get this treatment with good ventilation and no direct contact?

Thank you ladies. I'm only curious, but appreciate the feedback!