Hooray, another age-busting cream (at this rate, we're all going to look like new-born babes). Power A from Helena Rubinstein has the now-obligatory dermatological evidence proving its incorporation of pure retinol into the product will leave deep wrinkles "significantly reduced" after eight to 12 weeks. In addition, uneven pigmentation marks will be corrected and blemishes diminished. Available now from Helena Rubinstein counters at Brown Thomas, Dublin and Cork, Power A costs £42 for 50 ml.