Gentle shampoo
- Best for
- Cleaning without adding roughness to damaged lengths
- Look for
- Scalp-focused cleansing and a comfortable finish
- Watch for
- Scrubbing shampoo through fragile ends
Hair Care By Concern
Get a personalized repairing routine with bond-building products chosen by AI.
Hair damage breaks the disulfide bonds and strips the protective cuticle layer that keeps your hair strong, smooth, and shiny. This happens through heat styling, chemical treatments, UV exposure, mechanical stress, and even everyday friction from brushing and sleeping. Once damage occurs, hair cannot truly heal itself since it is not living tissue — but the right products can fill structural gaps, reinforce weakened bonds, and seal the cuticle to restore the look and feel of healthy hair. Bond-building treatments like those containing bis-aminopropyl diglycol dimaleate work at a molecular level to reconnect broken disulfide bonds. Protein treatments fill in gaps in the hair shaft where keratin has been stripped away. Deep conditioners and oils restore the lipid layer. The most effective repair routines layer these approaches based on your damage level. Mild damage may only need a weekly mask, while severely damaged hair benefits from bond builders, protein treatments, and daily leave-in protection.
Use this guide to choose products for your main concern and build them into a repeatable routine. Aim for improvement while protecting hair integrity, so solving one problem does not create another.
Start with the job each product needs to do, then choose a weight and format that fit the scalp, strand thickness, and styling plan. A useful routine rarely needs every category at once.
Keep in mind: Introduce one product at a time, follow its label, and stop if it causes persistent scalp irritation or increased breakage.
Next step
Use the hair routine builder to turn this guide into a wash-day and maintenance plan with product picks matched to your hair.
Tell us about your hair and get a personalized repair routine with real products in seconds.
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