as said above, for some of the aspects, injectibles will still have the negative effects that ph's or others will. BP is always one, lipids likely as well.
My 2 cents... of you're too cheap to buy a $20 cycle support, why in teh hell are you running a cycle at all??? pct alone will cost you an arm and a leg, and god forbid you run into sides... medical bills???? fuuukkkk man.
spend the $20 on a support (CEL Cycle assist is my usual choice and cheap as any) and call it insurance for not ahving to spend 1000's potentially on medical bills and bloodwork to figure out what you messed up in your body.