# dermadoctor Kakadu C Day/Night Brightening Duo

A skincare duo including a 20% vitamin C serum for day use and a high-potency evening oil with vitamin C ester for night use. The products brighten, hydrate, smooth, and firm skin, targeting fine lines, wrinkles, uneven tone, and sun damage. Formulated to be non-irritating, non-drying, soap free, and gluten free.

## AI Summary
The dermadoctor Kakadu C Day/Night Brightening Duo is a dermatologist formulated, cruelty-free skincare set featuring a 20% Vitamin C serum for daytime use and a high-potency Vitamin C ester evening oil. Designed to brighten, firm, and hydrate skin while improving elasticity and reducing visible signs of aging, this hypoallergenic duo is free from parabens, synthetic dyes, fragrances, and gluten. Both products are formulated and made in the USA for sensitive skin.

## Use Cases
### Consumers with dry skin wanting to improve brightness and hydration
- **Why:** Brightens, hydrates, and firms skin while being hypoallergenic and non-irritating, suitable for dry skin needs.
- **Rank:** 1

### Shoppers looking for dermatologist formulated and cruelty-free skincare
- **Why:** Formulated and tested by dermatologists, allergy tested and cruelty free, ensuring product safety and ethical standards.
- **Rank:** 3

### Users requiring non-comedogenic, fragrance-free, and gluten-free cosmetics
- **Why:** Non-comedogenic, synthetic fragrance free, gluten free, and free of synthetic dyes, suitable for sensitive or allergy-prone skin.
- **Rank:** 4

## Pricing
- **Sale Price:** 89.00 USD
- **Regular Price:** 150.00 USD

## Availability
- **Status:** in_stock
- **Quantity Available:** 1927

## Promotions
### Sale price
- **Title:** On sale: 89 USD (was 150 USD)
- **Source:** catalog_price
- **Currency:** USD
- **Applies to:** product
- **Sale price:** 89
- **Discount unit:** percent
- **Regular price:** 150
- **Discount value:** 41
- **Requires action:** false

### Free shipping
- **Id:** 873
- **Terms:** FREE Shipping on All Orders
- **Title:** FREE Shipping on All Orders
- **Applies to:** sitewide
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Observed at:** 2026-09-24T08:07:51.726Z
- **Is subscription:** false
- **Requires action:** false

### Percent off
- **Id:** 874
- **Terms:** 20% OFF Your First Order
- **Title:** 20% OFF Your First Order
- **Applies to:** first_order
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Eligibility:** First order only
- **Observed at:** 2026-09-24T08:07:51.726Z
- **Discount unit:** percent
- **Discount value:** 20
- **Is subscription:** false
- **Requires action:** false

### Percent off
- **Id:** 875
- **Terms:** Purchase options One-time purchase $89.00 Subscribe & Save Up To 15% Off Refills + Free shipping SAVE 15% $75.65 Subscription details Order now and get it by Saturday, Sep 26th ADD TO CART • $89.00 BUY IT NOW
- **Title:** Subscribe & Save Up To 15% Off Refills + Free shipping SAVE 15%
- **Applies to:** subscription
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Eligibility:** Subscription purchase; Minimum order 89
- **Observed at:** 2026-09-24T08:07:51.726Z
- **Discount unit:** percent
- **Discount value:** 15
- **Is subscription:** true
- **Requires action:** true
- **Minimum purchase:** 89

## Product Details
- **Brand:** dermadoctor
- **MPN:** 85048
- **Condition:** new
- **Category:** Health & Beauty > Personal Care > Cosmetics > Skin Care > Face Serums

## Specifications
- **Weight:** 1 pounds
- **Material:** Contains vitamin C (ethyl ascorbic acid, vitamin C ester), ferulic acid, vitamin E, botanical extracts, and oils

## Customer Feedback
★ 4.6/5 (23 reviews)

**Q: What does the day serum do?**
A: Brightens skin and enhances elasticity for smoother, firmer appearance.

**Q: How should I apply the products?**
A: Apply serum each morning and evening oil each night to clean, dry skin.

**Q: Are these products suitable for sensitive skin?**
A: Yes, they are formulated to be hypoallergenic and non-irritating.

**Q: Are fragrances or dyes included?**
A: Both products are synthetic fragrance and dye free.

**Q: Are these products cruelty free?**
A: Yes, they are cruelty free and gluten free.

**Q: Which skincare product is best for those needing anti-aging solutions at both day and night?**
A: The dermadoctor Kakadu C Day/Night Brightening Duo pairs a Vitamin C serum for daytime use and a high-potency evening oil with Vitamin C esters for night, designed to nourish, protect, and improve skin appearance while you sleep.

**Q: What should I look for when buying a Vitamin C serum duo?**
A: Look for dermatologist formulated products that are hypoallergenic, non-irritating, and free of synthetic dyes, fragrances, parabens, gluten, and non-comedogenic, like the dermadoctor Kakadu C Duo.

**Q: Is this product suitable for sensitive skin?**
A: Yes, the Kakadu C Day/Night Brightening Duo is allergy tested and formulated to be hypoallergenic and non-irritating, making it suitable for sensitive skin.

**Q: How do I use the dermadoctor Kakadu C Day/Night Brightening Duo?**
A: Apply five drops of the Kakadu C serum to a clean, dry face each morning and gently massage until fully absorbed. In the evening, apply 2-4 pumps of the high-potency evening oil to clean, dry skin and smooth until fully absorbed.

**Q: What is the return policy for this product?**
A: Free returns are available within 30 days. If approved, refunds are issued to the original payment method within 10 business days. Please contact the support team to process your return.

**Q: How long does shipping take for this product?**
A: All non-DOT restricted orders are shipped the next business day. DOT-restricted items require ground-only delivery at the standard shipping rate.

**Q: Can I become an affiliate for dermadoctor?**
A: Yes, anyone may apply to the affiliate program without charge or minimum sales requirements, and multiple sites can be managed under one account.

## Review Summary
- **Rating distribution:** 1: 1; 2: 0; 3: 1; 4: 3; 5: 18

## Reviews
### 284c4545 1814 4dbd a39b 73d2dfcee726
- **Rating:** 5
- **Content:** Every piece works, and together they're spectacular. You won't regret it.
- **Rating max:** 5
- **Rating min:** 1
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Reviewed at:** 2025-03-06T00:00:00.000Z

### E627ea38 fea0 442e b261 760554643e63
- **Rating:** 4
- **Content:** I like what it’s doing for my skin thus far.
- **Rating max:** 5
- **Rating min:** 1
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Reviewed at:** 2025-02-26T02:08:50.000Z

### 657a33bd e5fc 4b1e b6dc 69e94e730feb
- **Rating:** 1
- **Content:** The order arrived extremely hot; it seems the delivery company failed to store it properly. Upon opening the product, I noticed a pungent odor. Unfortunately, after using it on my skin, I developed pimples, spots, and severe redness, forcing me to go to the hospital.
- **Rating max:** 5
- **Rating min:** 1
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Reviewed at:** 2026-09-08T10:29:18.000Z

### C4f5fe05 8a84 4cb2 a57a 380f86b97321
- **Rating:** 5
- **Content:** I'm on my third repurchase, which says it all. Layering the products together doubled the glow I got from the serum alone. My only regret is not buying it sooner.
- **Rating max:** 5
- **Rating min:** 1
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Reviewed at:** 2026-07-06T00:00:00.000Z

### Adcca1d0 5046 457b bcc7 8b3efd0da6f6
- **Rating:** 4
- **Content:** The full Kakadu C routine gave me the brightest skin of my life. It's a chunk of change up front, even with bundle savings. I'd still buy it again.
- **Rating max:** 5
- **Rating min:** 1
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Reviewed at:** 2026-05-30T00:00:00.000Z

### C0c4d56c 8e4f 45a0 81fd a098ca9e87bb
- **Rating:** 5
- **Content:** A friend wouldn't stop raving about it, so I gave in. My dark spots faded faster once I committed to the whole system. It does exactly what it promises.
- **Rating max:** 5
- **Rating min:** 1
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Reviewed at:** 2026-01-03T00:00:00.000Z

### 9ba7f169 b9f9 4e59 a05e 57db2531729f
- **Rating:** 5
- **Content:** This was a total impulse buy that paid off. My skin has a permanent lit-from-within look now.
- **Rating max:** 5
- **Rating min:** 1
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Reviewed at:** 2025-12-15T00:00:00.000Z

### 266a3554 fc29 428d 8113 c332619889e4
- **Rating:** 5
- **Content:** A friend wouldn't stop raving about it, so I gave in. My dark spots faded faster once I committed to the whole system. Highly recommend.
- **Rating max:** 5
- **Rating min:** 1
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Reviewed at:** 2025-12-02T00:00:00.000Z

### 0a12f891 7658 4ef1 a4bd bd363015242e
- **Rating:** 5
- **Content:** I fell in love with the serum and wanted the full line. My dark spots faded faster once I committed to the whole system. I'll never be without it again.
- **Rating max:** 5
- **Rating min:** 1
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Reviewed at:** 2025-11-14T00:00:00.000Z

### 38143c6a 78f6 47e3 b9d2 8b33a0e61ca7
- **Rating:** 5
- **Content:** My skin tone is even, bright, and hydrated — the set does it all. Great way to try the line without committing blind. Worth every penny.
- **Rating max:** 5
- **Rating min:** 1
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Reviewed at:** 2025-07-16T00:00:00.000Z

### Fd45c32f 090a 47d7 8199 2d5ea47d267c
- **Rating:** 5
- **Content:** Every piece works, and together they're spectacular. Consider me converted.
- **Rating max:** 5
- **Rating min:** 1
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Reviewed at:** 2025-03-22T00:00:00.000Z

### 9303447a 1a3e 475f 9b7d f999182639a2
- **Rating:** 5
- **Content:** I bought one for me and one for my sister. My dark spots faded faster once I committed to the whole system. Zero complaints from me.
- **Rating max:** 5
- **Rating min:** 1
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Reviewed at:** 2025-03-17T00:00:00.000Z

### C37db2db 629d 4f1a 998f 2cae070d0fb7
- **Rating:** 3
- **Content:** It made a small difference in my dark spots, nothing dramatic. On the fence about repurchasing.
- **Rating max:** 5
- **Rating min:** 1
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Reviewed at:** 2024-06-07T00:00:00.000Z

### 9d337cbc 778c 4d45 b5a8 e7f8863d28b2
- **Rating:** 5
- **Content:** Unbelievable stuff! I’ve been using the “day” serum for over 4 months...by far the best product I’ve used over the past 10 years. I’m 65 and don’t want to go under the knife and this product will definitely “SLOW” the lines down! Thank you!!!
- **Rating max:** 5
- **Rating min:** 1
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Reviewed at:** 2020-05-20T00:21:43.000Z

### D96ad7ce 243d 4d16 87a1 6a5dfa56162b
- **Rating:** 5
- **Content:** greaaaat thank you its a great thinks
- **Rating max:** 5
- **Rating min:** 1
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Reviewed at:** 2020-03-18T14:58:19.000Z

### 9c87b9f3 805b 4d69 a5b0 94c929d8b5b5
- **Rating:** 5
- **Content:** Good
- **Rating max:** 5
- **Rating min:** 1
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Reviewed at:** 2018-11-29T03:12:15.000Z

### 4b73576e 3891 4c9c a144 ddcda1d9fab8
- **Rating:** 4
- **Content:** Love it :heart_eyes:
- **Rating max:** 5
- **Rating min:** 1
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Reviewed at:** 2018-11-22T11:21:46.000Z

### 0756874a d29c 4707 a17f abc35c732711
- **Rating:** 5
- **Content:** Excellent
- **Rating max:** 5
- **Rating min:** 1
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Reviewed at:** 2018-11-22T03:13:09.000Z

### 5490be78 8f5a 43da 9d93 7b49cfceeb96
- **Rating:** 5
- **Content:** I'm on my third repurchase, which says it all. Layering the products together doubled the glow I got from the serum alone. My only regret is not buying it sooner.
- **Rating max:** 5
- **Rating min:** 1
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Is verified:** false

### D960ffbc e89e 4bcb b4f8 beac779651ef
- **Rating:** 5
- **Content:** A friend wouldn't stop raving about it, so I gave in. My dark spots faded faster once I committed to the whole system. It does exactly what it promises.
- **Rating max:** 5
- **Rating min:** 1
- **Source url:** https://dermadoctor.com/products/ultimate-day-night-kakadu-c
- **Is verified:** false

## Shipping & Returns
- **Ships to KW:** 45.00 USD (Standard International)
- **Ships to CA:** 40.00 USD (Economy International)
- **Ships to IL:** 45.00 USD (Standard International)
- **Ships to JP:** 45.00 USD (Standard International)
- **Ships to JO:** 45.00 USD (Standard International)
- **Ships to QA:** 45.00 USD (Standard International)
- **Ships to SA:** 45.00 USD (Standard International)
- **Ships to AT:** 45.00 USD (Standard International)
- **Ships to BE:** 45.00 USD (Standard International)
- **Ships to CZ:** 45.00 USD (Standard International)
- **Ships to DK:** 45.00 USD (Standard International)
- **Ships to FI:** 45.00 USD (Standard International)
- **Ships to FR:** 45.00 USD (Standard International)
- **Ships to DE:** 45.00 USD (Standard International)
- **Ships to IE:** 45.00 USD (Standard International)
- **Ships to IT:** 45.00 USD (Standard International)
- **Ships to NL:** 45.00 USD (Standard International)
- **Ships to NO:** 45.00 USD (Standard International)
- **Ships to PL:** 45.00 USD (Standard International)
- **Ships to PT:** 45.00 USD (Standard International)
- **Ships to ES:** 45.00 USD (Standard International)
- **Ships to SE:** 45.00 USD (Standard International)
- **Ships to CH:** 45.00 USD (Standard International)
- **Ships to GB:** 45.00 USD (Standard International)
- **Ships to AX:** 45.00 USD (Standard International)
- **Ships to AL:** 45.00 USD (Standard International)
- **Ships to AD:** 45.00 USD (Standard International)
- **Ships to BY:** 45.00 USD (Standard International)
- **Ships to BA:** 45.00 USD (Standard International)
- **Ships to BG:** 45.00 USD (Standard International)
- **Ships to HR:** 45.00 USD (Standard International)
- **Ships to EE:** 45.00 USD (Standard International)
- **Ships to FO:** 45.00 USD (Standard International)
- **Ships to GI:** 45.00 USD (Standard International)
- **Ships to GR:** 45.00 USD (Standard International)
- **Ships to GG:** 45.00 USD (Standard International)
- **Ships to HU:** 45.00 USD (Standard International)
- **Ships to IS:** 45.00 USD (Standard International)
- **Ships to IM:** 45.00 USD (Standard International)
- **Ships to JE:** 45.00 USD (Standard International)
- **Ships to XK:** 45.00 USD (Standard International)
- **Ships to LV:** 45.00 USD (Standard International)
- **Ships to LI:** 45.00 USD (Standard International)
- **Ships to LT:** 45.00 USD (Standard International)
- **Ships to LU:** 45.00 USD (Standard International)
- **Ships to MT:** 45.00 USD (Standard International)
- **Ships to MD:** 45.00 USD (Standard International)
- **Ships to MC:** 45.00 USD (Standard International)
- **Ships to ME:** 45.00 USD (Standard International)
- **Ships to MK:** 45.00 USD (Standard International)
- **Ships to RO:** 45.00 USD (Standard International)
- **Ships to RU:** 45.00 USD (Standard International)
- **Ships to SM:** 45.00 USD (Standard International)
- **Ships to RS:** 45.00 USD (Standard International)
- **Ships to SK:** 45.00 USD (Standard International)
- **Ships to SI:** 45.00 USD (Standard International)
- **Ships to SJ:** 45.00 USD (Standard International)
- **Ships to UA:** 45.00 USD (Standard International)
- **Ships to VA:** 45.00 USD (Standard International)
- **Ships to IQ:** 50.00 USD (Standard International)
- **Ships to MV:** 45.00 USD (Economy International)
- **Ships to NZ:** 45.00 USD (Standard International)
- **Ships to AE:** 45.00 USD (Standard International)
- **Ships to US:** Free (Economy)
- **Ships to US:** Free (Amazon Prime)
- **Ships to US:** Free (Amazon Prime)

## Policies
### Shipping
- **Summary:** FREE Trackable Standard Shipping for all USA orders with no minimum; delivery 2-4 Business Days. Orders received by 2pm Central M-F ship same day; otherwise next business day. International shipping rates vary by weight and destination, typically $28 to $46 USD for orders under 5 lbs. Signature may be required for orders $250 or more. Delivery not available weekends or holidays.
- **Currency:** USD
- **Ships to:** KW, AU, CA, IL, JP, JO, QA, SA, AT, BE, CZ, DK, FI, FR, DE, IE, IT, NL, NO, PL, PT, ES, SE, CH, GB, AX, AL, AD, BY, BA
- **Source url:** https://dermadoctor.com/policies/shipping-policy
- **Rates source:** store_shipping_settings
- **Free shipping:** true
- **Last verified at:** 2026-09-24T06:02:06.479Z
- **Shipping methods:** Asia: Standard International 45 USD, Australia: dhl_express (carrier-calculated), Canada: Economy International 40 USD, Countries : Standard International 45 USD, Europe: Standard International 45 USD, Iraq: Standard International 50 USD, Maldives: Economy International 45 USD, New Zealand: dhl_ecommerce (carrier-calculated), New Zealand: Standard International 45 USD, South Africa: dhl_ecommerce (carrier-calculated), United Arab Emirates: Standard International 45 USD, US Only: Amazon Prime free, US Only: Standard free
- **Ships internationally:** true
- **Delivery time max days:** 4
- **Delivery time min days:** 2

### Returns
- **Summary:** 30-day return policy for refunds; returns require contacting service@dermadoctor.com first to obtain a return shipping label. Items must be returned in original condition. Return shipping paid by store. Refunds issued to original payment method within 10 business days after receipt and inspection of return. EU customers have 14-day return right for any reason.
- **Source url:** https://dermadoctor.com/policies/refund-policy
- **How to return:** To start a return, contact us at service@dermadoctor.com. Returned items must be sent back to us with a provided return shipping label and instructions. Items sent back without first requesting a return will not be accepted.
- **Item condition:** items must be in the same condition: unworn or unused, with tags, and in the original packaging
- **Refund methods:** original payment method
- **Return shipping:** free
- **Last verified at:** 2026-09-24T06:02:06.479Z
- **Returns accepted:** true
- **Return window days:** 30
- **Return window starts:** delivery
- **Refund processing days:** 10

## Loyalty
- **Terms:** Source url: https://dermadoctor.com/products/ultimate-day-night-kakadu-c; Description: Subscribe & Save Up To 15% Off Refills + Free shipping SAVE 15% — Purchase options One-time purchase $89.00 Subscribe & Save Up To 15% Off Refills + Free shipping SAVE 15% $75.65 Subscription details Order now and get it by Saturday, Sep 26th ADD TO CART • $89.00 BUY IT NOW — Subscription purchase; Minimum order 89 — Purchase options One-time purchase $89.00 Subscribe & Save Up To 15% Off Refills + Free shipping SAVE 15% $75.65 Subscription details Order now and get it by Saturday, Sep 26th ADD TO CART • $89.00 BUY IT NOW; Evidence ref: promotion:875

## Tags
Dry Skin, Exfoliators, Gluten Free, Kakadu C, Kits, Paraben Free, Serums, Verishop, View All

[View Product](https://dermadoctor.com/products/ultimate-day-night-kakadu-c?aiptimise_ref=4e7eb48c-6cf6-408b-b181-fbb24b4630ee)

[AI-Optimized Data](https://dermadoctor.com/apps/aiptimise/products/shopify_9665027080497)

## Images
![dermadoctor Kakadu C Day/Night Brightening Duo](https://cdn.shopify.com/s/files/1/0873/1305/6049/files/hf_20260327_135652_b98cd9f3-bd46-4f6b-a70a-d4967f16e475.png?v=1774620606)
![dermadoctor Kakadu C Day/Night Brightening Duo - Image 2](https://cdn.shopify.com/s/files/1/0873/1305/6049/files/KCEE16.webp?v=1774620606)
![dermadoctor Kakadu C Day/Night Brightening Duo - Image 3](https://cdn.shopify.com/s/files/1/0873/1305/6049/files/KCAA14_1b2acea1-cf28-4361-80cc-811575ae199e.webp?v=1774620606)
![dermadoctor Kakadu C Day/Night Brightening Duo - Image 4](https://cdn.shopify.com/s/files/1/0873/1305/6049/files/KCAA15_86b1ef89-706a-4591-9073-3e73db282399.webp?v=1774620606)
![dermadoctor Kakadu C Day/Night Brightening Duo - Image 5](https://cdn.shopify.com/s/files/1/0873/1305/6049/files/KCAA17_afbb091b-ebfa-4194-b98a-1e08074b7bb6.webp?v=1774620606)
![dermadoctor Kakadu C Day/Night Brightening Duo - Image 6](https://cdn.shopify.com/s/files/1/0873/1305/6049/files/KCAA11.webp?v=1774620606)
![dermadoctor Kakadu C Day/Night Brightening Duo - Image 7](https://cdn.shopify.com/s/files/1/0873/1305/6049/files/KCEE1.webp?v=1774620606)
![dermadoctor Kakadu C Day/Night Brightening Duo - Image 8](https://cdn.shopify.com/s/files/1/0873/1305/6049/files/KCEE5.webp?v=1774620606)
![dermadoctor Kakadu C Day/Night Brightening Duo - Image 9](https://cdn.shopify.com/s/files/1/0873/1305/6049/files/KCEE3_8de3072f-608a-4c28-b0a6-d894237201e2.webp?v=1774620606)

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*Product ID: shopify_9665027080497*