By Reuters Staff (Adds detail, background) BERLIN, Feb 17 (Reuters) - Shares in Nivea maker Beiersdorf fell on Wednesday after it said it does not expect a recovery in profitability in 2021 even though sales of products such as sunscreen and luxury skin cream should bounce back as COVID-19 lockdowns are lifted. Beiersdorf said late on Tuesday that it expects a return to revenue growth for the group as a whole and its consumer business but its operating margin to remain at the same 12.9% level as 2020. The group’s Tesa adhesives unit is also projected to return to sales growth, but its operating margin is expected to be hit by increased investment. Beiersdorf said on Tuesday that it will invest an extra 300 million euros ($362 million) over the next five years.