Yes, like Curlypriya said, that product is CG safe. To elaborate, PEG or PPG in front of a silicone means it's been modified to be water soluble. That means it will cowash out and is safe to use on a strict CG, cowashing only regimen. You usually see the PEG or PPG followed by a number, like your PEG-12 Dimethicone.
CG since 11/2011
2c /3a F /Mii, low porosity

Summer Products /Routine:
Clarifying: ACV rinses, Suave Professional Men Deep Clean Peppermint
Low Poo: Renpure Luxurious Argan Oil
Co-washes: VO5 Kiwi Lime Squeeze or Strawberries & Cream
RO: VO5 KLS or S&C, Cure Care
LI (if needed): VO5 S&C, VO5 SC, Cure Care
Stylers: FSG, AIF,
Tresemme Flawless Curls Bouncy Curls gel
PT: IAGirl's (link) as needed