This vitamin C serum from Joanna Vargas is formulated with squalane oil to support hydration and skin barrier function. Designed for aging skin, the serum aims to boost collagen production and improve overall skin texture. The inclusion of vitamin C helps to protect against environmental stressors while working to brighten the complexion and promote a more even tone. Squalane oil, a lightweight plant-derived emollient, adds moisture without leaving a greasy residue, making the serum suitable for daily use. The rescue formula is intended to enhance radiance and refine the appearance of fine lines and dullness. This facial serum is built around a straightforward ingredient approach, focusing on antioxidant support and gentle nourishment. It is appropriate for those looking to add a hydrating step to their skincare routine that targets signs of aging. The texture absorbs readily, allowing it to layer well under moisturizers or sunscreen. The product does not rely on synthetic fragrances or harsh additives, keeping the formulation approachable for various sensitivities. Regular application is meant to support a smoother, more luminous complexion over time, as the combination of vitamin C and squalane oil works to reinforce the skin’s natural resilience. This serum can be integrated into a morning or evening regimen, applied after cleansing and before richer treatments. Its lightweight consistency makes it a practical choice for warmer climates or for those who prefer non-sticky finishes. The packaging is designed to preserve the stability of the active ingredients, ensuring that each dose remains effective through the product’s lifespan. The serum is particularly suited for skin that has begun to show loss of firmness or uneven texture, offering a straightforward way to introduce collagen-supporting actives. By focusing on two well-researched ingredients, this serum provides a focused approach to aging skin care without unnecessary complexity.