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Kao's flagship Sofina iP serum — Japan's #1 selling serum for 4+ consecutive years and absolutely unique in the global skincare market. The pitch: a carbonated (CO2-infused) foam serum that uses the Bohr effect (raised tissue CO2 → increased oxygen delivery to skin cells) to boost microcirculation and skin glow. The texture is genuinely novel — it dispenses as a foaming sphere that liquefies on skin and absorbs in seconds with a tingling carbonation sensation. Sounds gimmicky; works in a way you can feel.
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iP Base Care Serum by Sofina iP is formulated for normal, combination, dry, mature skin. Kao's flagship Sofina iP serum — Japan's #1 selling serum for 4+ consecutive years and absolutely unique in the global skincare market. The pitch: a carbonated (CO2-infused) foam serum that uses the Bohr effect (raised tissue CO2 → increased oxygen delivery to skin cells) to boost microcirculation and skin glow. The texture is genuinely novel — it dispenses as a foaming sphere that liquefies on skin and absorbs in seconds with a tingling carbonation sensation. Sounds gimmicky; works in a way you can feel.
The key active ingredients in iP Base Care Serum are Panthenol, Glycerin. It's known for: genuinely novel CO2-foam delivery system and Japan's #1 serum for 4+ years isn't accidental.
Yes, iP Base Care Serum targets dryness, fine lines, dullness. genuinely novel CO2-foam delivery system
iP Base Care Serum retails for around $75, which places it in the premium range for serums. Check the "Where to Buy" section above for current retailer prices.
The main drawbacks to be aware of: premium price reflects the technology; the carbonation sensation isn't for everyone; limited US/EU distribution outside specialty Japanese-import retailers.
A suggested daily routine featuring this product, with complementary picks.
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