Products and Ingredients
Where can I find the full ingredient list?
Product pages list each product's ingredients. If anything's missing or you have a question about a specific ingredient, email us — we're happy to help.
How do I know when a product expires?
Korean cosmetics carry a manufacture or expiry date printed on the packaging, plus a period-after-opening (PAO) symbol — the small open-jar icon with a number like "12M" meaning 12 months after opening. We source in small, frequent batches so products arrive fresh.
Will the packaging be in Korean?
Yes — our products are authentic Korean market versions, so packaging is often in Korean. Every product page includes English directions, ingredients, and key details, so you'll always know how to use what you ordered.
Is this product right for sensitive skin?
Check the ingredient list on the product page, and patch test any new product before full use (see our Skincare Basics FAQ for how). Our product descriptions flag common sensitivities where relevant, but if you have a skin condition or a known allergy, check with a dermatologist first — we can't provide medical advice.
An item I want is out of stock. Will it come back?
Usually, yes — most restocks arrive within a few weeks. Email us at hey@sleepyhello.com with the product name and we'll let you know when it's back.
How should I store my products?
Keep products in a cool, dry place away from direct sunlight — a drawer or cabinet is perfect. Avoid storing skincare in a steamy bathroom or hot car, and always close lids tightly to keep formulas stable.