This is a prosthetic surgery that emplaces an appropriate size of a silicone forehead implant or Gore-Tex flake under the forehead skin to achieve augmentation and compensate forehead bone depression or unevenness. This method is currently acknowledged as the most stable and long-lasting forehead augmentation. It is conducted by creating a 4-cm incision at the scalp behind the hairline superior to the forehead, detaching the forehead skin from the bone via an endoscope (similar to an endoscopic brow lift) to create a proper subcutaneous space, and then emplacing the pruned or finished forehead implant into the sub-periosteal space. When the implant is confirmed to be fully attached to the bone, the scalp incision is stitched. This surgery not only reinforces the forehead arc and curvature but also realizes a regional lift of the loose or mild droopy forehead skin. For patients in need of eyebrow bone augmentation, more Gore-Tex flakes are emplaced via the same incision to enhance the prominence at the superior margin of the eyebrow to fulfill the dual objective of forehead and eyebrow augmentations.