Peach & Lily

Day & Night Serum Duo

Sale price $85 Regular price $94
Peach & Lily Day & Night Serum Duo Products
Day & Night Serum Duo
Peach & Lily Day & Night Serum Duo Products Day & Night Serum Duo

Luminous skin day and night.

Get visibly radiant skin AM and PM with this duo. Our bestselling Glass Skin Refining Serum promotes visibly hydrated, smooth, luminous skin. Our breakthrough Retinal For All Renewing Serum visibly reverses and prevents signs of aging with a powerful yet gentle dose of 0.1% retinal. Skin will appear firm and more even-toned with a youthful glow.

The results speak for themselves:

Glass Skin Refining Serum (40ml):*

  • 100% said the serum is suitable for sensitive skin
  • 96% saw smoother and softer skin
  • 96% saw increased hydration and improved dry patches
  • 92% saw brighter, more luminous, and healthier skin with a radiant glow

Retinal For All Renewing Serum (30ml):*

  • 50% reduction in fine lines and wrinkles¹˒²
  • 50% improvement in brightness¹˒²
  • 62% improvement in skin texture¹˒²
  • 67% improved skin barrier⁴
  • 0% irritation³

*3rd party consumer study results

  1. Measured by Corneometer, Tewameter, TEWL, Cutometer, Visia Scan instrumentation based on a 4-week and 12-week independent clinical study conducted by expert clinical graders.
  2. Percentages reflect a range of results and may indicate maximum benefits achieved.
  3. “Zero irritation” claim refers to a near 0% water loss to skin, post formulation application, as measured in a 4-week independent clinical study using a Tewameter, indicating virtually no skin-barrier disruption.
  4. “Improved skin barrier” claim refers to a 67.62% improvement of the skin barrier, as measured in a 12-week independent clinical study using a Tewameter, indicating 67.62% less transepidermal water loss (TEWL).
  5. S. Mukherjee, A. Date et al., Clin Interv Aging. 2006 Dec; 1(4):327 348.doi: 10.2147/ciia.2006.1.4.327
  6. Novel research by Kang S, Kim K, Jun SH, et al. Anti-Irritant Strategy against Retinal Based on the Genetic Analysis of Korean Population: A Genetically Guided Top-Down Approach. Pharmaceutics. 2021 Dec; 13(12): 2006. DOI: 10.3390/pharmaceutics13122006
  7. G. Siegenthaler et al., Retinol and retinal metabolism, Biochemical Journal, 1990, 268,pp 371 378
  • Acne
  • Aging
  • Dark spots
  • Dullness
  • Fine lines & wrinkles
  • Loss of firmness
  • Hyperpigmentation
  • Redness
  • Sensitivity
  • Uneven skin tone
  • Uneven skin texture
Learn More

Pairs Well With

  • Clean Ingredients

  • Clinically Effective

  • Vegan

  • Cruelty-Free

  • Earth-Focused

Ingredients

Potent actives like peptides and vitamin C visibly firm, brighten, and hydrate skin.

Ingredients

Potent actives like peptides and vitamin C visibly firm, brighten, and hydrate skin.

Featured Ingredients

  • 01 Niacinamide
  • 02 Peach Extract
  • 03 Heartleaf Extract
  • 04 Retinaldehyde
  • 05 Ectoin

All Ingredients

See individual product pages.

From Our Founder

Alicia Yoon

"We spent over 6 years formulating these bestselling and iconic serums, carefully selecting a revolutionary cocktail of ingredients to deliver tremendous results in the Day and Night Serum Duo."

Concerns

  • 01 Acne
  • 02 Aging
  • 03 Dark spots
  • 04 Dullness
  • 05 Fine lines & wrinkles
  • 06 Loss of firmness
  • 07 Hyperpigmentation
  • 08 Redness
  • 09 Sensitivity
  • 10 Uneven skin tone
  • 11 Uneven skin texture

"Gentle, but works really well on my textured skin."

Dyan R. - Verified Buyer

Overall rating: 4.8365383 / 5 from 104 reviews.

AI Generated Review Summary

The Day & Night Serum Duo offers visibly radiant skin with the Glass Skin Refining Serum promoting hydration and smoothness, and the Retinal For All Renewing Serum reversing signs of aging. Customers reported smoother, softer, and more luminous skin, along with improved skin texture and barrier function.

Summary topics

  • Visible Results (8%): Customers loved the great results they achieved with the product and were very happy with it.
  • Noticeable Difference (6%): It was noted by customers that using the product made a noticeable difference for their skin's smoothness and firmness.
  • Combo Satisfaction (6%): Customers appreciated the combo as it was described as perfect, great, and loved by many.

Review topics: ["size","feels","improvement","issues","results","looks","skin","shipping","amount","pores","irritation","serum","acne","absorbs","duo","difference","combo","retinol","cream","routine","buy","combo of products","deal","works","set","peach","brand"].

Review highlights

  • "It makes my skin feel great!" — Michelle A.
  • "This duo is amazing for my combination and acne prone skin." — Lynda P.
  • "My skin looks and feels fantastic, and as always nothing harmful or toxic in the ingredients." — Elizabeth N.

Reviews

Gentle and Effective for Sensitive Skin

"I have sensitive skin with a hormonal acne prone t-zone. Recently, I'd been trying new products to try and solve the closed comedones along my t-zone, but they only persisted through many different brands. After adding the glass skin serum and retinol into my routine the passed few weeks, I've seen a significant difference in my texture, closed comedones, and the way I break out! I apply the glass skin serum about 5x a week and the retinol 2x a week, and both were effective. My comedones have become active, allowing me to remove them more efficiently, with less post-acne scarring to heal. Whatever acne was too below the skin also rose to the surface and became active enough for an eventual removal within days of using the serum and retinol. 10/10, worth the money and will be purchasing the full size soon!! ♡♡♡ (Below is my skin with 1 week between each other)"

— Maritoni S. (5/5)

New Customer

"I have been using Peach and Lily for about 2 months now and I have been getting non-stop compliments on my skin since beginning this journey of skin changes as we age, I am pleasantly surprised that how good it actual works, Thanks to my Bestie for recommending the line :)"

— Zachary P. (5/5)

Essential products for my skin care.

"I have used these for several years. Essential to keep skin hydrated along with the moisturizer. Highly recommend."

— B E. (5/5)

"Absolutely fabulous products!!"

— Amie (5/5)

great add-on

"i like it so far as an add in for my routine! helps even out my dryness vs oily"

— kelsey w. (5/5)

Love ❤️ make my face

"Love ❤️ make my face feel and looks amazing."

— Emily F. (5/5)

So good!

"My travel must haves! Love them both, this is the first retinol gentle enough for my sensitive skin."

— Megan M. (5/5)

Perfect size

"The best from Peach & Lily in mini size. Easy to bring anywhere you go."

— Gusti M. (5/5)

It’s been working great for

"It’s been working great for my skin. My skin feels clean and refreshed"

— Emily K. (5/5)

Love the retinal, like the glass skin serum.

"Love the retinal, like the glass skin serum. Went from the mildest retinol to this retinal serum and I had no negative reactions other than expected minor sensitivity. The glass skin serum I like but not necessarily love. It's a good all arounder but there's cheaper k-beauty products out there with the same ingredients."

— David T. (4/5)

Q&A