Quench Summer-Parched Skin: Introducing Two New Hydrating Oil in Serums
The summer ahead brings intense sun and a level of dryness rarely seen in recent years. To care for skin from within during this season, two new Oil in Serums are arriving — formulated with "Calendula × Herb" and "Hidaka Kombu × Birch".
The goal was to create the freshest within SHIRO's Oil-in Serum range. Each drop delivers lasting moisture while sinking into the skin at the moment of application, as if dissolving into it from within.
Consider it a reassuring drop of protection for your skin — something to carry you comfortably through the demands of summer.
What makes SHIRO skincare special is the freedom to choose products according to how your skin feels each day, much like planning a meal with your body's needs in mind. We hope you enjoy exploring combinations beyond a single series — mixing different ingredients to find what works for your skin on any given day, and building a complexion that feels vibrant from deep within.
6 AUG 2026 Available at SHIRO UK Online Store and SHIRO Monmouth Street
PRODUCT LINEUP
60mL £58
This serum brings together Calendula Oil, extracted from the flower of calendula — known as a guardian herb for sensitive skin — with Herb Care Water, made from 15 carefully selected herb extracts — including Hokkaido-grown Japanese mugwort — which help to firm the skin. It also features a calendula extract drawn primarily from the calyx of the plant.
This is a rescue Oil in Serum intended for aftercare after strong sunlight, guiding it towards a supple, smooth, and luminous-looking.
Calendula — Hirota Farm, Awaji Island, Hyogo Prefecture
Long cherished as a protective herb, calendula is known for caring for damage to sensitive skin and helping to prevent skin roughness.
Mugwort (Yomogi) —Aibetsu , Hokkaido
A plant long valued for culinary and wellness uses. Rich in vitamin C and polyphenols, it is helping with skin roughness and supporting the skin's moisture retention.
60mL £58
The upper layer combines a highly moisturising Hidaka kombu extract — drawn using an oil extraction method — with Kalahari melon oil. The lower layer contains birch sap collected from birch trees, birch distillate water derived from fresh young leaves, and a water-extracted Hidaka kombu extract.
It replenishes moisture in skin that has become thoroughly dehydrated, and helps to balance the skin's moisture and oil levels — guiding a complexion where pores appear prominent towards a smoother finish. A lightweight, non-sticky Oil in Serum that is ideal for summer.
Hidaka Kombu (Mitsuishi Kombu) — e-Combu, Hiroo Town, Hokkaido
Rich in vitamins and minerals, Hidaka kombu is said to contain higher levels of vitamins A and B — which support skin health — compared to gagome kombu.
Its viscous component, fucoidan, is known for its excellent moisture-retaining properties and is said to help maintain skin hydration and protect against dryness.
Birch (Shirakaba)—Aibetsu / Horokanai / Etanbetsu , Hokkaido
Sensitive to heat and dryness, birch thrives in cold climates and grows widely across Hokkaido within Japan.
The bark and young leaves are rich in vitamin C, flavonoids, and tannins, and are said to address a variety of skin concerns.
STORY
SHIRO skincare can be used by choosing ingredients to suit your skin's condition on any given day. The Oil in Serum launched in limited quantities in April 2025 was well received by many customers, offering a thoughtful response to a range of skin concerns through carefully selected ingredient combinations.
This summer, alongside the pleasure of exploring different ingredients, we have selected formulations that focus specifically on summer skin concerns. Please enjoy caring for your skin this season with these two products: the CALENDULA HERB OIL IN SERUM, which gently envelops skin left dry and sensitised by strong UV rays and helps to calm it back to a healthy state, and the HIDAKA KOMBU SHIRAKABA OIL IN SERUM, which smooths skin that feels oily on the surface yet dry beneath, where disrupted texture makes pores more visible.