Fragrance-free smoothing gel

For years I've been a very happy user of Textureline Smoothing Serum. It's not sticky at all, doesn't glue my hair in spikes, keeps the frizz out of my curls, and doesn't feel awful like other gels when I wash my hair the next time.

Many thumbs up.

Unfortunately, it has a light fragrance, and I have a girlfriend with extreme chemical sensitivity. Being close to my hair makes her feel dizzy for hours. She's asked me to find something fragrance-free.

Does anyone have recommendations for a similar product, but not scented?

Many thanks for any pointers.

Victor.