Best PDRN Serums Under $30 for the 35+ Skincare Convert in 2026 (Editorial Roundup)
An editorial research roundup of the best under-$30 PDRN (salmon DNA) serums for the 35+ skincare convert in 2026 — Anua, Numbuzin, Medicube, VT and a Rejuran splurge — with the honest topical-vs-injectable reality.