Preparation H with Bio-Dyne

Mechanisms

Outcome				Grade		Effect		Evidence		Studies
Collagen				C		⇧ Potential		★★ Some		1 study 20 participants

Side Effects

Outcome			Effect		Frequency			Studies
Skin Discomfort			⇧ Increase		5% (1 out of 20 participants)			1 study

Latest Research

Hypo-collagenesis in photoaged skin predicts response to anti-aging cosmeceuticals (2013)