Can you take keratin supplement while pregnant? Possible risks and side effects These levels of formaldehyde exceeded the national safety standard for chemical exposure by five times . For that reason, pregnant women should avoid getting this treatment. People with a sensitivity to formaldehyde or respiratory problems should also avoid keratin treatments.
How much biotin is safe during pregnancy? The Food and Drug Administration (FDA) recommends that pregnant or lactating women obtain 300 mcg of biotin each day. Because our bodies have the ability to recycle the biotin that’s already been used, biotin deficiencies are less common.