CAS Number: 9006-65-9
Dimethicone is a fluid type of silicone with a methyl as organic group radical. Silicones are polymers of silicon tied to oxygen atoms with high molecular weight (see information on silicone and dimethicone). Dimethicone is water repellent and it is used in creams, dressings for skin protection and pediculicides. An activated form of Dimethicone is Simethicone that is used for treatment of flatulence (see info on Simethicone) At latest update, relevant published data on excretion into breast milk were not found. Because it is not absorbed through the skin or orally along with a high molecular weight, excretion into breast milk in significant amount or absorption by the infant gut is highly unlikely. See below the information of these related products:
Octinoxate (Octylmethoxycinnamate) has been detected in human urine, blood and breast milk and is known for moderate risk of skin allergy. Some studies suggest that Octinoxate has estrogen like effects however less than 1% skin penetration has been found in human laboratory studies. As not much study has been done on effects of Octinoxate during breast feeding its recommended to use safe alternatives.
Octyl Methoxycinnamate (OMC) is a frequently used UV-filter in sunscreens and other cosmetics. Octinoxate can be systemically absorbed after skin application, being found in the deeper layers of the stratum corneum as well as urine, plasma, and breast milk. The mean maximum plasma concentration detected after application of 2mg/cm2 sunscreen was 7ng/mL in women and 16ng/mL in men. FDA study found blood levels 13 times above cutoff for systemic exposure.
Several studies indicated that OMC acts as an endocrine disruptor due to the ability to interfere with endocrine system at different levels. In humans OMC exposure has minor, but statistically significant effects on the levels of testosterone and estradiol. Moreover, some studies suggested that OMC can interact with the hypothalamo-pituitary-thyroid (HPT) axis.
Moreover, a study of offspring of dams treated with OMC (500–1000 mg/kg/day) showed sex-dependent behavioral changes, namely decreased motor activity in females, but not in males, and improved spatial learning in males, suggesting that OMC can affect neuronal development, however the doses used in these experiments were extremely high, not relevant to possible human exposure.Note: Study and data for tropical use only
Oxybenzone has been found in mother’s milk. And has relatively high 1% to 9% skin penetration in lab studies. Oxybenzone has relatively high rates of skin allergy, it has weak estrogen like effects, and its observed as moderate anti-androgen. Oxybenzone is associated with altered birth weight in human studies. It is not recommended to use Oxybenzone during breast feeding.Note: Study and data for tropical use only.
You should immediately inform your health care provider about Blistex Ultra Rich Hydration | Octinoxate, Oxybenzone, And Dimethicone Stick usage and your breastfeeding interval after usage of
Please double check with your doctor if he is aware of your breastfeeding stratus, Ask your doctor if there is any safe alternative of Blistex Ultra Rich Hydration | Octinoxate, Oxybenzone, And Dimethicone Stick. Check with your doctor if you shall temporally stop breastfeeding. You may go for second opinion as well. Still after all of this if your doctor still recommends Blistex Ultra Rich Hydration | Octinoxate, Oxybenzone, And Dimethicone Stick then go for it as they have access on more detailed medical and scientific information and they understand your individual medical situation much better.
Extreme level of monitoring required as Blistex Ultra Rich Hydration | Octinoxate, Oxybenzone, And Dimethicone Stick could be dangerous for kid.
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