The Science
Built from first principles for Indian skin physiology.
GOOD SHELL formulas are developed around the dermatological realities of Fitzpatrick III–V skin — higher melanocyte activity, faster post-inflammatory pigmentation, and a barrier challenged by humidity, UV, and pollution. Every active is included at a concentration validated in peer-reviewed literature, not at a token amount for label claims.
Active
Tranexamic Acid
Interrupts melanocyte–keratinocyte signaling. Reduces post-inflammatory hyperpigmentation.
Active
Alpha Arbutin
Reversibly inhibits tyrosinase. Visible tone correction without irritation.
Active
Niacinamide
Controls sebum, evens tone, supports the lipid barrier.
Active
Ceramides
Restore the lipid layer. Brightening actives only work on a healthy barrier.