Buy the Flexitol Heel Balm.

It is built to fix split heels, not just moisturize feet in general.

What was compared

1. Strong enough to actually close the cracks
Flexitol packs 25% urea, the concentration dermatologists point to for genuinely split heels. Eucerin Advanced Repair never states its urea level, leaning on ceramides built for general dryness, not deep fissures.
2. Made for cracked heels, not dry skin overall
Flexitol is formulated around heel repair specifically, with 2% salicylic acid to help slough dead skin off actual fissures. Eucerin Advanced Repair is a general dry-skin cream repurposed for feet, not built around the crack itself.
3. The one dermatologists actually name for this
Flexitol Heel Balm has been named Best Overall Foot Cream in dermatologist-reviewed roundups specifically for cracked heels. Eucerin's praise in reviews mostly comes from general hand and body dryness, not this exact problem.
4. Sinks in fast, no greasy residue after
Reviewers describe Flexitol soaking straight in, not greasy or sticky, with noticeably softer skin after one use. Eucerin reviewers note their cream feels greasier on the skin, which matters if socks go on right after.
5. Yes, Eucerin is fragrance-free. Buy Flexitol anyway.
Eucerin wins on being unscented and cheaper per ounce across its 3-pack. But heel balm goes on two small spots nightly, not your whole foot, so Flexitol's tube lasts the actual job regardless of per-ounce price. Unless you have a real fragrance allergy, that is a small trade for the formula built for your actual problem.