Skincare brand RoC has launched the Hydra+ Hyaluronic Serum Stick, transforming traditional liquid facial serums into a portable solid stick for handbag use.
Priced at €39.90, the new product represents the beauty company's first hydrating serum presented in a solid stick format.
Traditional hyaluronic acid treatments are typically sold in glass bottles with dropper pipettes, designed for application at home as part of a multi-step morning or evening routine. RoC formulated the new product to allow users to apply hydrating serum directly onto the face at any time of day without needing to touch the formula with their fingers or look into a mirror.
RoC was founded in France in 1957 by pharmacist Dr. Jean-Charles Lissarrague at the Dantes Pharmacy in Paris. The brand gained recognition in the cosmetics industry for formulating hypoallergenic skincare products and pioneering stabilized retinol formulas designed to address visible signs of cutaneous aging.
Format and On-the-Go Application
The product features a gelled water texture that melts immediately upon contact with the skin. RoC designed the stick to provide an instant cooling sensation when swiped across the face, making it suitable for quick touch-ups whenever the skin feels dry or fatigued.
In addition to daytime touch-ups, the stick can be integrated into standard daily skincare regimens. It can be applied as a primary hydrating layer before a traditional moisturizing cream, and it is also formulated for safe application on the neck area.
Solid stick formats originated primarily in sun care and lip treatments before expanding into facial cleansers, moisturizers, and active treatment serums. Beauty industry analysts attribute the format's growth to changing consumer lifestyles, increasing interest in minimalist beauty routines, and demand for multi-use products that eliminate liquid spill hazards during travel.
Liquid serums often present risks of leakage in handbags and require clean hands or dedicated applicator tools. Twist-up stick packaging offers precise, mess-free delivery designed for travel and busy schedules.
Multi-Molecular Formula and Peptide Blend
Beyond its solid format, the Hydra+ Hyaluronic Serum Stick incorporates a complex formula combining seven different forms of hyaluronic acid. Each form features a distinct molecular weight tailored to act on epidermal hydration across different skin surface layers.
Hyaluronic acid is a naturally occurring glycosaminoglycan in human connective tissue capable of binding up to 1,000 times its weight in water. In dermatological science, the efficacy of topical hyaluronic acid depends heavily on molecular weight. High molecular weight molecules remain on the surface of the stratum corneum to seal in moisture and prevent transepidermal water loss, while lower molecular weight variants penetrate into deeper epidermal layers to replenish lost moisture.
To complement the hydration blend, RoC added a pro-collagen and pro-elastin peptide duo to the formula. These two structural peptides work in synergy to redensify the skin and visibly smooth its texture over time with continuous application.
Peptides are short chains of amino acids that function as structural signaling molecules in dermatological formulations. Collagen forms the primary protein matrix responsible for skin firmness and structural strength, while elastin fibers provide the elasticity that allows skin to bounce back after facial movements. As skin ages or suffers environmental stress, natural collagen and elastin synthesis declines, leading to fine lines and loss of firmness.
Hydration Performance and DehydrAGEing Claims
According to clinical claims released by RoC, the serum stick provides up to 100 hours of hydration starting from the first application. The company stated that after one week of regular use, the product visibly reduces five distinct skin concerns associated with what it terms dehydrAGEing.
RoC defines dehydrAGEing as the compound visible impact of skin moisture loss, specifically targeting dryness, wrinkles, uneven skin texture, dullness, and reduced elasticity. Dermatologists note that chronic surface dehydration can accentuate fine lines and compromise the skin moisture barrier, making multi-depth hydration a key component in maintaining skin vitality.
The Hydra+ Hyaluronic Serum Stick features a fragrance-free formula that is suitable for all skin types, including sensitive skin. Formulating skincare without added fragrances is standard practice for products targeting sensitive skin, as synthetic and natural fragrance compounds are common triggers for cutaneous irritation and contact allergies.
The release expands the practical uses of hyaluronic acid, bringing one of the beauty industry's most established moisturizing ingredients into a mobile skincare format.
