This study aims to evaluate the improvement of CeraVe moisturising lotion on the cuticle moisture of dry skin and barrier repair function.

Inclusion Criteria:

• Those who volunteer to participate in the trial, sign the informed consent, be able to cooperate with follow-up observation, and conduct the trial according to the guidance of the doctor.
• Dry skin subjects with symmetrical distribution of forearm flexion diagnosed by a doctor.
• Those who are 30-80 years old, male or female.
• Those with good compliance who can not use other external drugs during the entire observation period.

Exclusion Criteria:

• Those who do not sign the informed consent.
• Those with the history of allergies to test product and control product ingredients.
• Those who received or are receiving medical or physical therapy for any skin or systemic disease recently (≤3 months)
• Those who have a large amount of exudation in the acute phase or who are infected at the test site.
• Female subjects who are preparing for pregnancy, pregnancy, lactation, or within six months after delivery.
• Those who participate in clinical trials of other moisturizing products or emollients.
• Those who are taking other oral medicines that affect the skin condition.
• Those who the investigator considers unsuitable for other reasons.