The Hair Loss Care SHAMPOO by LABO-H and the SENSITIVE SCALP CARE SHAMPOO by NARD both emphasize gentle, sulfate-free formulas that are suitable for sensitive scalps. Users of both products have reported positive experiences with hydration and cleansing effectiveness without irritation. However, specific mentions of "hydrating" are less frequent compared to other attributes like cleansing effectiveness and scalp comfort.

For the Hair Loss Care SHAMPOO, users have highlighted its effectiveness in reducing hair shedding and maintaining scalp health, though some have noted that it doesn't dramatically regrow hair. The product is praised for its refreshing sensation and quality ingredients, but there are concerns about the price and the lack of fragrance.

The SENSITIVE SCALP CARE SHAMPOO by NARD is similarly appreciated for its gentle cleansing and suitability for sensitive scalps. Users have noted improvements in scalp conditions like itching and dandruff. However, there are mentions of the shampoo feeling a bit stiff after use, suggesting it may require a conditioner for optimal results.

Both shampoos are recommended for those with sensitive scalps looking for a sulfate-free option, but if hydration is your primary concern, you might want to consider how each product performs specifically in that aspect based on individual reviews.