Blackmores BIO C® 500 Sustained Release gives you a boost of vitamin C over a sustained 8 hour period. Supports immune system health and reduces the severity and duration of the common cold.
Why use
Delivers a gradual supply of vitamin C over 8 hours
Supports immune system health
Reduces the duration and severity of common cold symptoms
Buffered with mineral ascorbates making it gentle on the stomach
Added bioflavonoids thought to support the efficacy of vitamin C
Supports general health and wellbeing
The Blackmores difference
BIO C® 500 Sustained Release is specially formulated to release vitamin C over a sustained 8 hour period providing you with a gradual supply throughout the day.

Our formula is buffered with mineral ascorbates to give you a vitamin C that’s gentle on the stomach and has added bioflavonoids thought to support the efficacy of vitamin C.

*Due to packaging redesign and improvements, these may not reflect exactly the product you receive*