Peach & Lily

Peach & Lily Glass Skin Refining Serum

Name: Glass Skin Refining Serum
Brand: Peach & Lily
Price: 39 USD
Availability: InStock

Serum·Mid-Range·$39 / 40ml — $0.98/ml

Peach & Lily Ulta Amazon

Links may contain affiliate codes.

Peach & Lily Glass Skin Refining Serum$39 / 40ml — $0.98/ml

Peach & Lily Ulta Amazon

Formulation Summary

A hydration-focused serum built to deliver the Korean beauty 'glass skin' look. The formula combines niacinamide with four types of hyaluronic acid, centella derivatives, peach extract, and peptides. Designed for sensitive skin from the ground up.

Peach & Lily developed this over 200+ formula tests with cosmetic chemists. The approach prioritizes gentle hydration over high-potency actives. Niacinamide sits at a moderate concentration for brightening and oil control without irritation risk. Multiple molecular weights of hyaluronic acid target different skin layers. Centella derivatives calm inflammation while peptides support firmness. The result is a formula that addresses multiple concerns at once without overwhelming sensitive skin.

Quick Facts

TextureLightweight gel serum; absorbs to smooth finish

ColorClear

Fragrance-free✓ Yes

Cruelty-free✓ Leaping Bunny

Vegan✓ Yes — All products are vegan

ScentFragrance-free

Designed For

•Sensitive or eczema-prone skin seeking gentle actives
•Those wanting the 'glass skin' luminous hydration look
•Users who prioritize fragrance-free, clean formulas
•People new to niacinamide who want a lower concentration
•K-beauty enthusiasts looking for a multi-benefit serum

May Not Suit

•Those seeking high-potency niacinamide (10%+)
•Users who want a single-ingredient treatment
•People who dislike any initial tack or residue during absorption

Key Ingredients

Ingredient	Concentration	Function
Niacinamide	2-5%third-party estimate	Brightens skin tone, calms inflammation, supports barrier function, controls oil
Sodium Hyaluronate (multiple types)	—	Four molecular weights of hyaluronic acid hydrate at different skin depths
Madecassoside + Asiaticoside	—	Centella asiatica derivatives that calm inflammation and support healing
Prunus Persica (Peach) Fruit Extract	—	Antioxidant; contains vitamins, minerals, fatty acids; supports firmness and radiance
Acetyl Octapeptide-3	—	Peptide that supports skin firmness and reduces fine line appearance
Dioscorea Japonica Root Extract	—	East Asian mountain yam; traditional Korean ingredient for skin nourishment

The Formulation Explained

Multi-weight hyaluronic acid complex

The formula uses four types of hyaluronic acid at different molecular weights. Standard sodium hyaluronate hydrates the surface, hydrolyzed versions penetrate deeper, and acetylated hyaluronic acid provides longer-lasting moisture. This layered approach creates the plump, luminous 'glass skin' effect.

Gentle niacinamide concentration

Niacinamide appears fourth in the INCI list, suggesting an estimated 2-5% concentration. This is lower than many niacinamide serums (which often feature 10%+) but is intentional. The brand prioritizes sensitive skin tolerance over high-potency active delivery.

Centella derivatives for calming

Madecassoside and asiaticoside are purified derivatives of centella asiatica (cica). They calm inflammation and support skin healing without the variability of whole plant extracts. This makes the formula particularly suitable for reactive or eczema-prone skin.

Clean formula approach

No fragrance, no alcohol, no essential oils. The formula was developed by founder Alicia Yoon, who has eczema and needed products gentle enough for her own skin. The brand emphasizes '100% Worry-Free' clean beauty standards.

Ingredients to Know

EthylhexylglycerinComedogenicity: 0/5Irritancy: 1/5

Preservative booster; generally well tolerated but rare sensitizer

PropanediolComedogenicity: 0/5Irritancy: 0/5

Plant-derived solvent; enhances penetration; alternative to propylene glycol

Butylene GlycolComedogenicity: 1/5Irritancy: 1/5

Humectant and solvent; well tolerated by most

User Feedback Patterns

Hydration standout:Users consistently report improved hydration and a plumper, more luminous appearance. Many describe the 'glass skin' effect as real.

Sensitive skin safe:Eczema-prone and reactive skin users frequently report no irritation. Popular first serum for those new to actives.

Texture praise:Lightweight gel texture absorbs quickly. Some note a slight initial tack that disappears once fully absorbed. Layers well.

Fading scars:Multiple users report gradual fading of acne scars and improved evenness over weeks of use.

Repeat purchase loyalty:High repurchase rate in reviews. Users describe it as a staple they consistently return to.

Full INCI List

24 ingredients · Click "Show full list" to view

About Peach & Lily

Founded2012 (retailer), 2018 (own product line)

FounderAlicia Yoon

LocationNew York, USA

CertificationsLeaping Bunny cruelty-free

Does not disclose exact active concentrations. Emphasizes '100% Worry-Free' clean beauty standards. Products manufactured to Korean Ministry of Food and Drug Safety 'functional cosmetics' standards.