A third of the over 50s surveyed don't feel they contributed enough to ensure a comfortable retirement, but felt that they couldn't have done anything differently in early life to change this.
The research also found 62% have never increased their pension contributions throughout their working life. When it comes to the gender divide, over two thirds (68%) of women have never increased their salary contribution compared to 53% of men.
Colin Williams, managing director, corporate benefits at Friends Life, said: "Our message to those who missed saving earlier in their careers is that there's still time to make a difference.
"At 50 years old many workers still have 15 or more years left to work, and increasing contribution levels at this age could make a significant impact on the size of their pension pot.
"Keeping track of pensions built up throughout their working career will also help workers understand their collective pension position, and using tools and forecasters they can make informed changes to their contributions to help increase their final pot size to better meet requirement needs."
