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Obagi Professional-C 20% Vitamin C Serum - 1 oz / 30 ml

$69.99

The Gold Standard in Vitamin C SkincareMeet the serum that dermatologists have trusted for decades. The Obagi Professional-C 20% Vitamin C Serum delivers a potent, stabilized dose of L-ascorbic acid — the most bioavailable form of Vitamin C — directly into your skin. At 20%, this is the highest concentration...

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Dresses Size Chart

Dress Size Chart (Inch)
DRESSES
SIZE IN INCHES
SIZE US / CAN BUST WAIST HIPS
XS 0 31"-32" 24"-25" 34"-35"
S 2-4 33"-34" 26"-27" 36"-37"
M 6-8 35"-36" 28"-29" 38"-39"
L 10-12 37"-39" 30"-32" 40"-42"
XL 14 40"-42" 33"-35" 43"-45"
Dress Size Chart (cm)
DRESSES
SIZE IN CM
SIZE US / CAN BUST WAIST HIPS
XS 0 78.7-81.2 60.9-63.5 86.3-88.9
S 2-4 83.8-86.3 66-68.5 91.4-93.9
M 6-8 88.9-91.4 71.1-73.6 96.5-99
L 10-12 93.9-99 76.2-81.2 101.6-106.6
XL 14 101.6-106.6 81.2-88.9 109.2-114.3

Swimwear Size Chart

Dress Size Chart (Inch)
SWIMWEAR
SIZE IN INCHES
SIZE US / CAN BUST WAIST HIPS
XS 0 31"-32" 24"-25" 33"-34"
S 2 33"-34" 26"-27" 35"-37"
M 4 35"-36" 28"-29" 37"-38"
L 6 37"-39" 30"-32" 39"-41"
XL 8 40"-42" 33"-35" 42"-44"

Shoes Size Chart

US EURO UK AUS JAPAN CHINA
5 35-36 3 3.5 21.5 35
5.5 36 3.5 4 22 35.5
6 36-37 4 4.5 22.5 36
6.5 37 4.5 5 23 36.5
7 37-38 5 5.5 23.5 37
7.5 38 5.5 6 24 37.5
8 38-39 6 6.5 24.5 38
8.5 39 6.5 7 25 38.5
9 39-40 7 7.5 25.5 39
9.5 40 7.5 8 26 39.5
10 40-41 8 8.5 26.5 40
11 41-42 9 9.5 27.5 41

Delivery

    All orders shipped with UPS Express.

    Always free shipping for orders over US $250.

    All orders are shipped with a UPS tracking number.

Returns

    Items returned within 14 days of their original shipment date in same as new condition will be eligible for a full refund or store credit.

    Refunds will be charged back to the original form of payment used for purchase.

    Customer is responsible for shipping charges when making returns and shipping/handling fees of original purchase is non-refundable.

    All sale items are final purchases.

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The Gold Standard in Vitamin C Skincare

Meet the serum that dermatologists have trusted for decades. The Obagi Professional-C 20% Vitamin C Serum delivers a potent, stabilized dose of L-ascorbic acid — the most bioavailable form of Vitamin C — directly into your skin. At 20%, this is the highest concentration in the Professional-C line, formulated for those who are serious about results. Whether you're battling dark spots, uneven tone, or the early signs of aging, this serum works at the cellular level to restore your skin's natural radiance.

Feel the Difference from the First Drop

The lightweight, fast-absorbing formula glides on effortlessly, leaving no greasy residue — just a silky, refreshed feeling that primes your skin for the day ahead. With consistent use, expect to see a visible reduction in hyperpigmentation, a more even complexion, and a firmer, more youthful-looking texture. The antioxidant power of Vitamin C also shields your skin from environmental aggressors like UV damage and pollution, making it your daily armor against premature aging.

Trusted Formula, Visible Results

Obagi has been a cornerstone of professional skincare for over 30 years, and the Professional-C Serum is one of their most celebrated formulations. Each 1 oz / 30 ml bottle is packed with clinical-grade ingredients that deliver measurable improvements in skin brightness and firmness. Ships fast across the US — so your skin doesn't have to wait to start glowing.

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