Particularly interesting for crepey skin, firmness and plumping. It combines copper peptides, niacinamide and hyaluronic acid and has unusually strong user ratings.
Needle-less Plumping and Smoothing Serum - DRMTLGY | Ulta Beauty
A very good inexpensive retinol option if lines and wrinkles are the primary concern.
RETINOL CORREXION® Deep Wrinkle Daily Moisturizer SPF 30
I’d consider this if firmness, fine lines and dehydration are the priorities, particularly if you already use a separate retinoid.
Liquid Peptides™ Hydrating Serum with 10 Age-Defying Peptides - Medik8