with Propylene Glycol

Propylene Glycol by Secret of Aging is a high‑performance humectant prized for enhancing hydration, improving texture, and elevating formula efficacy in luxury skincare.

Why Is “with Propylene Glycol” Beneficial in Secret of Aging Skincare
Attracts and retains moisture, improves ingredient penetration, and supports a smoother, more supple complexion—promoting *cutis hydratata et levigata*.
How “with Propylene Glycol” Performs in Key Secret of Aging Product Categories
Cleansers
Propylene Glycol Maintains hydration during cleansing, preventing tightness while supporting a soft, balanced complexion.
Toners
Propylene Glycol Provides lightweight hydration that enhances suppleness, refines texture, and reinforces *defensio cutis*.
Serums
Propylene Glycol Boosts ingredient absorption, delivering deeper nourishment and supporting a smoother, more radiant complexion.
Moisturizers
Propylene Glycol Reinforces hydration, softens texture, and strengthens the moisture barrier—*barriera cutis integra*—for lasting comfort.
Repair Creams
Propylene Glycol Supports recovery from dryness and irritation by enhancing moisture retention and improving resilience.
Eye Creams
Propylene Glycol Hydrates and smooths the delicate periocular area, helping maintain *oculi nutriti et sereni*.
Makeup & Foundation
Propylene Glycol Enhances slip, improves blendability, and supports a smoother, more conditioned base for flawless makeup application.
Lip Treatments
Propylene Glycol Hydrates and conditions delicate lip skin, helping maintain softness, comfort, and *labia nutrita et defensa*.