What "Rejuv" Actually Means—According To A Board-Certified Derma (And The Dogshow Divas)

Filipino slang has its own way of giving everyday words new meanings. Linguists call this "semantic shift" or "semantic change," where a word gradually takes on a different definition over time.

For example, "atake" used to simply mean attack, but now it's widely understood as "powerful aura" or "you're serving." Even "award," once strictly about recognition, has evolved to mean that someone's opinion was great and that they deserve an award for it. 

Recently, another word has joined the growing vocabulary of Filipino slang: "rejuvenation," often shortened to "rejuve" or "rejuv."

The word rejuvenation has long held its place in the Filipino market, especially with the rise of "rejuvenation sets" sold both online and in stores. These sets, typically containing a cleanser, toner, and whitening creams, became so common that the term naturally seeped into everyday language.

Macoy "Macoy Dubs" Averilla and Baus Rufo know this all too well. In their "Hindi Po Ito Bayad" Dogshow Divas podcast episode, the duo broke down how Filipinos understand the word rejuvenation before it eventually evolved into a word "glow up," now widely shortened to "rejuve."

"The 'rejuv' name, nag-evolve na siya... Kasi di ba 'rejuvenating set' yun? Tapos ngayon ang tawag na ng mga tao sa kanya rejuv... it's a verb [and] it's a noun,” Baus shared. He further explained that "rejuv" has become a term for people who use rejuvenating sets and pertains to sudden glow-up.

Macoy and Baus even joked that the word may have started "from the lab," where scientists supposedly had a "eureka" moment—transforming rejuvenation into "rejuv," a playful shorthand for suddenly coming up with an idea or glow-up concept. 

But what does the word "rejuvenation" actually really mean for dermatologists?

According to Dr. Marion Meneses-Castro, a board-certified dermatologist from Kash Dermatology, the word "rejuvenation," while widely understood as over-the-counter "rejuvenating sets," actually has a different meaning in clinical dermatology.

"In dermatology, 'rejuv' refers to true skin rejuvenation—restoring skin health, texture, and elasticity, with a scientifically guided approach resulting in a natural, radiant glow," Dr. Marion told Cosmopolitan Philippines.

Dr. Marion noted that the commercialized version of "rejuv" could be misleading, functioning more as a marketing buzzword that promises fast, dramatic results but may end up doing more harm than good. "The word 'rejuv' is often seen online, marketed as a quick fix or trendy solution for glowing skin… but often irritate or even damage the skin, because they aren't personalized or evidence-based," Dr. Marion explained.

"When dermatologists talk about rejuvenation, it's all about helping the skin look and feel its healthiest. Real 'rejuvenation' comes from safe, evidence-based treatments," she added.

She clarified that dermatological rejuvenation is not limited to what Filipinos typically associate with "rejuvenating sets." Instead, it can range from topical retinoids and medical-grade chemical peels to more advanced procedures, including minimally invasive treatments and energy-based devices—all of which support true skin renewal.

Ultimately, achieving a glow-up goes beyond quick fixes. Healthy habits matter too. As Dr. Marion emphasized, incorporating "daily SPF, healthy lifestyle habits, and personalized skincare routines" is essential to "help your skin repair, strengthen, and glow naturally."