A dermatologist shared a viral 5-step skincare routine for radiant, smooth skin

• Dr. Christopher Tomassian shared a five-step weekly routine for improving skin texture.
• Tomassian said to use topical vitamin C, niacinamide, retinol, and a chemical exfoliant.

A dermatologist shared a five-step weekly routine for improving skin texture that has gone viral on social media with more than 8 million views.

Dr. Christopher Tomassian, founder of The Dermatology Collective in southern California, shared a TikTok video featuring suggestions for which products to use to make skin texture more even, and how to space out their usage over the week.

Here are the products Tomassian recommended, and how often he said to use them.

Vitamin C

Tomassian suggested using a vitamin C serum every morning.

Research suggests that applying vitamin C to the skin can help with the production of collagen, lighten hyperpigmentation, and improve a variety of inflammatory skin complaints, as well as make skin less rough.

"The thought is that if you use topical vitamin C, it can help minimize the damage from the environment and the sun to help prevent wrinkles and aging because it can boost collagen," Dr. Afton Cobb, a Wyoming-based dermatologist, previously told Insider.

Niacinamide

The next step Tomassian recommended is using niacinamide each night. Board-certified dermatologist Dr. Suchismita "Tia" Paul previously told Insider that niacinamide is a type of vitamin B3 that can hydrate the skin, as well as combat acne, mild redness, and dark spots.

Retinol

Tomassian suggested using retinol three times a week at night. A form of vitamin A, retinol is collagen-building and can combat the signs of aging.

"Retinol is the only applied topical agent that has been shown to actually stimulate collagen and plump the skin due to the formation of new blood vessels," Minnesota-based dermatologist Dr. Mohiba Tareen previously told Insider.

A chemical exfoliant

Tomassian suggested using a chemical exfoliant once a week, such as lactic acid — which is suitable for sensitive skin — or mandelic acid or glycolic acid, which can help acne-prone skin.

Unlike mechanical exfoliants such as face scrubs, which can be harsh and abrasive, chemical exfoliants use acid to remove dead skin cells or unclog pores with "less room for error," Los Angeles-based dermatologist Dr. Ivy Lee previously told Insider.

Sunscreen

Lastly, Tomassian said to wear sunscreen every day.

According to the American Academy of Dermatology, everyone should wear sunscreen on areas of the skin not covered by clothing when outdoors, even on cloudy days, as harmful ultraviolet rays from the sun can penetrate clouds.

UV rays can cause skin cancer as well as premature aging in the form of wrinkles and age spots.

The organization states that sunscreens should provide "broad-spectrum protection" against UVA and UVB rays, be SPF 30 or higher, and water resistant.