Sunday Riley A+ High-Dose Retinol Serum 1.0 oz — 6.5% concentrated retinoids, soothing botanicals

Sunday Riley A+ High-Dose Retinol Serum is an advanced-strength retinoid formula delivering a 6.5% concentrated blend of stabilized retinoids and plant-derived retinol alternatives to support smoother, more even-looking skin.

This concentrated serum combines multiple forms of retinoid technology with soothing botanicals and antioxidant support to address the visible signs of aging and the appearance of congestion and sun-damaged skin. Formulated to pair potent actives with calming extracts, it aims to deliver results while minimizing surface irritation. The kit version also includes travel-size C.E.O. Glow Vitamin C + Turmeric Face Oil and Good Genes All-In-One Lactic Acid Treatment for a complementary routine.

How does this serum deliver high-dose retinoid activity?

The formula layers several stabilized retinoid types for both immediate and sustained delivery. Encapsulation and liposomal technology help control release and improve tolerability while blending retinoid esters and retinol derivatives for a combined 6.5% total solution.

• 5% retinoid ester blend for gradual conversion on the skin
• 1% liposomal-encapsulated retinol for controlled release
• 0.5% blue-green algae acting as a natural retinol alternative
• Encapsulated CoQ10 to support antioxidant activity

What skin concerns can it help improve?

This serum is formulated to target visible signs often associated with aging and environmental damage, including uneven texture, the look of fine lines, and areas of congestion. It combines actives known to refine surface texture with botanicals chosen to soothe and balance.

• Improves the appearance of fine lines and skin texture
• Helps reduce the look of enlarged pores and congested areas
• Supports an even-toned complexion after consistent use
• Pairs with antioxidant and exfoliating mini products in the set

How does the formula manage sensitivity and irritation?

Rather than relying solely on potency, the serum blends calming extracts and delivery systems aimed at reducing surface irritation. Soothing ingredients and encapsulation techniques are included to balance the active retinoids and promote a more comfortable wear.

• Hawaiian white honey and bisabolol to calm skin and reduce visible redness
• Cactus extract and ginger for additional balancing properties
• Encapsulation/liposomal delivery to moderate active release
• No added fragrance, sulfates, parabens, gluten, soy, phthalates

How should this serum be used within a skincare routine?

Introduce the serum gradually, using it a few nights per week at first and building frequency as tolerated. Apply on dry skin after cleansing and before moisturizers; follow with SPF during daytime as retinoid use can increase light sensitivity.

• Start with 1–2 nights weekly, increase slowly based on tolerance
• Layer under hydrators and oils; avoid mixing with strong exfoliants on the same night
• Always use broad-spectrum sunscreen during the day
• Consider pairing with included Vitamin C oil and lactic acid treatment on alternate nights for a balanced routine

Who is this for: This serum is intended for adults seeking an effective, science-forward retinoid option to address texture, the look of fine lines, and sun-affected or congested skin. It suits people who want a high-strength retinoid system with botanical soothing agents and prefer formulas free from fragrance, sulfates, parabens, gluten, soy, and phthalates. Those new to retinoids should introduce it slowly and consult a skincare professional if they have reactive or medically sensitive skin.

Ingredients

Water/Eau/Aqua, Dimethyl Isosorbide, Propanediol, Triheptanoin, Dimethicone, Glycerin, Pentylene Glycol, Cetyl PEG/PPG-10/1 Dimethicone, Disiloxane, Hexyldecanol, Diheptyl Succinate, Phenylpropanol, Phenyl Trimethicone, PPG-24-Glycereth-24, Hydroxypinacolone Retinoate, Sodium Acrylates Copolymer, Helianthus Annuus (Sunflower) Seed Oil, Honey Extract/Extrait de Miel, Opuntia Ficus-Indica (Prickly Pear) Fruit Extract, Bisabolol, Butyrospermum Parkii (Shea) Butter, Retinol, Sodium Hyaluronate Crosspolymer, Ubiquinone, Zingiber Officinale (Ginger) Root Extract, Tocopherol, Hydrogenated Polydecene, Lecithin, 1,2-Hexanediol, 4-t-Butylcyclohexanol, Caprylyl Glycol, Phospholipids, Polyglyceryl-10 Stearate, Sorbitol, Cetylhydroxyproline Palmitamide, Polysilicone-11, Benzoic Acid, Dehydroacetic Acid, Capryloyl Glycerin/Sebacic Acid Copolymer, Sodium Phytate, Phenoxyethanol, Glyceryl Polyacrylate, Alcohol, Polysorbate 20, Saccharomyces Cerevisiae Extract, Brassica Campestris (Rapeseed) Sterols, Hydroxyphenyl Propamidobenzoic Acid, Stearic Acid, Sodium Benzoate, Potassium Phosphate, Benzyl Alcohol, Decyl Glucoside, Algae Extract, Hexylene Glycol, Potassium Sorbate