BBC Radio 4 - Sliced Bread, Sliced Bread - Series 5

Sourdough

Is sourdough the best thing since sliced bread?

Can it deliver longer, fuller or curlier lashes – and at what cost?

Do toothpastes promising to repair enamel and help with sensitive teeth really work?

Can teas, herbal tablets and oils or sprays send us to sleep?

Is it worth spending money on an expensive mattress?

Can conditioners 'condition' our hair? And can we protect our hair from heat?

Is bottled water cleaner and better for you than tap?

Can they target pain and work faster for a higher price?

Are the Ecoegg, laundry sheets and microfibre filters really better for the environment?

Is paying more for premium petrol worth the extra pennies?