SOS Serum
TIRTIR
A soothing hydrating serum with hyaluronic acid, polyglutamic acid, and peptides that calms irritation while delivering deep moisture. Formulated with Centella Asiatica and witch hazel for sensitive or stressed skin.
Key Ingredients
Solvent and humectant for ingredient delivery
Humectant that attracts and retains moisture
Astringent and anti-inflammatory soothing agent
+ 15 more ingredients
Ingredient Effectiveness Data
Editorial baseline from K-beauty clinical research and community consensus. Real subscriber reports layer on as the community grows.
More Korean Serums
Frequently Asked Questions
What are the key ingredients in SOS Serum?
The key active ingredients in SOS Serum by TIRTIR include Glycerin (Humectant that attracts and retains moisture), Witch Hazel Extract (Astringent and anti-inflammatory soothing agent), Polyglutamic Acid (Humectant that enhances moisture retention), Licorice Root Extract (Brightening and anti-inflammatory active ingredient), Rosemary Leaf Extract (Antioxidant and skin conditioning agent). Drawing on K-beauty research and community consensus, key ingredients show 85% effectiveness for redness in sensitive skin types. Seoul Sister tracks ingredient effectiveness across 5,900+ K-beauty products to provide data-backed recommendations.
Is SOS Serum good for sensitive skin?
SOS Serum is a Korean serum by TIRTIR. Sensitive skin compatibility depends on individual triggers and allergies. Seoul Sister's AI advisor Yuri analyzes all 20 ingredients against your specific skin type, concerns, and known allergens to provide a personalized compatibility score. Common irritant ingredients like fragrance, alcohol denat, and essential oils are flagged automatically.
Is SOS Serum good for oily skin?
For oily skin, the key factors in evaluating SOS Serum are comedogenic ingredient ratings, oil content, and finish type. This serum contains 13 active ingredients. Seoul Sister's database cross-references each ingredient's comedogenic rating (0-5 scale) against your skin type to identify potential pore-clogging risks. Subscribe for a personalized oily skin compatibility analysis.
How much does SOS Serum cost?
SOS Serum by TIRTIR starts from $19.00 USD for 50ml, with prices ranging up to $43.00 across retailers. Seoul Sister Pro members compare prices across 6+ authorized retailers including Olive Young, Soko Glam, and YesStyle to find the best deal, with automatic price drop alerts.
Where to buy SOS Serum?
SOS Serum by TIRTIR is available from authorized K-beauty retailers including Olive Young Global, Soko Glam, YesStyle, and Amazon. Prices start from $19.00 USD. Seoul Sister verifies retailer authenticity and tracks counterfeit indicators to help you buy genuine Korean skincare products.