Dark lips can be caused by various factors such as dryness, sun damage, and hyperpigmentation. While there are natural remedies that can help lighten or care for dark lips, such as gently exfoliating the lips with a homemade honey scrub or having an almond oil lip massage, some people may prefer to use dermatologist-designed products to treat their dark lips. Here are some details on a few such products:

1. Curologys Lip Balm: This lip balm is designed by dermatologists and is free of ingredients known to cause breakouts or irritation. It contains a special blend of plant-based butters and oils to help stop moisture loss and soothe dry, cracked lips. It comes in five unique options: vanilla, passion fruit, mint, unflavored, and SPF 30 lip balm. The plant-based formula contains moisturizing ingredients picked by dermatologists and is made from moisture-locking, non-comedogenic ingredients.

2. Aquaphor Healing Ointment: This ointment is recommended by dermatologists for its healing ingredients, which include petrolatum, mineral oil, lanolin, and glycerin. It can help soothe and prevent dry lips and can also be used to help heal burns and scrapes.

3. Lip balms with hydrating ingredients: Dermatologists recommend lip balms with hydrating ingredients such as glycerin, dimethicone, hemp seed oil, castor seed oil, and mineral oil to help heal chapped lips. Some examples of such lip balms include:

• Burts Bees 100% Natural Moisturizing Lip Balm
• Vaseline Lip Therapy Lip Balm
• Neutrogena Norwegian Formula Lip Moisturizer

It is important to note that some ingredients should be avoided while treating chapped lips, such as camphor, eucalyptus, and sun-protective ingredients like titanium oxide or zinc oxide. Additionally, some natural ingredients have been shown to be effective in managing hyperpigmentation, such as azelaic acid, soy, niacinamide, and tranexamic acid. However, it is important to consult with a dermatologist before using any new product or treatment for dark lips.