RetAsphere 2-in-1 Retinol Night Cream

Retinol has always had an image problem. It is the ingredient dermatologists most consistently recommend for anti-aging, but it is also the ingredient most people abandon within the first month because of the peeling, the redness, the overnight transformation into someone who looks like they vacationed too close to the sun. Kate Somerville tried to fix this in 2013 with the RetAsphere, a night cream that encased retinol in tiny lipid bubbles designed to release it slowly over hours rather than all at once. It was an elegant idea. It was also, perhaps, slightly ahead of its time.

The RetAsphere Smart Release Carrier System is the product's defining technology. PPG-12/SMDI Copolymer forms microsphere shells around particles of pure retinol. When these microspheres contact skin at body temperature, the lipid shells gradually dissolve, releasing retinol in a sustained curve rather than a single peak. In theory, this means the skin never experiences the high-concentration burst that triggers the irritation cascade — the redness, the flaking, the desperate reach for heavy moisturizer at 2 AM. In practice, many users report that this is indeed a gentler retinol experience than traditional formulations, with visible results appearing within two weeks and minimal peeling for most skin types.

The formulation earns the 2-in-1 name honestly. Ceramide 3, a skin-identical lipid, works to replenish the barrier ceramides that retinol use depletes. Sodium hyaluronate provides humectant hydration. Vitamin E stabilizes the retinol while conditioning the skin. And a dual seaweed extract system (chondrus crispus in both whole and hydrolyzed forms) creates a moisture-locking matrix. The result is a retinol cream that builds its own safety net — the treatment and the damage control arrive together.

The texture, however, is polarizing. This is a thick, rich cream that requires genuine effort to blend and absorb. Where most modern retinol products aim for lightweight, fast-absorbing textures, the RetAsphere sits on the skin with the confidence of a cream that knows it has important work to do and will not be rushed. Five to ten minutes to fully absorb is the commonly reported experience. There is a tackiness during this period that some find comforting — it feels like the product is working — and others find simply annoying.

For dry skin, this thickness is a feature. The cream doubles as a night moisturizer, and by morning the skin feels noticeably plumper, smoother, and more luminous. For combination or oily skin, it is likely too much. The heavy emollient base, while protective, can feel suffocating on skin that does not need that level of occlusion.

The lavender oil is this formula's most frustrating inclusion. In a product designed to be gentle on the skin — one that goes to the trouble of microencapsulating its retinol for reduced irritation — adding a known sensitizer feels contradictory. Lavender oil contains linalool and linalyl acetate, both EU-listed fragrance allergens that can cause contact sensitization with repeated use. It is a spa-scented concession to the luxury market that undermines the clinical credentials of the technology underneath.

The retinol concentration is not disclosed, which at eighty-five dollars per ounce is a significant transparency gap. Based on its INCI position and the brand's marketing as gentle and beginner-friendly, it is likely in the 0.1-0.5% range. The microencapsulation means even a lower concentration delivers sustained exposure, but consumers paying prestige prices deserve to know what they are getting.

The jar packaging is another misstep. Retinol degrades on exposure to air and light — that is precisely why it needed to be encapsulated in the first place. Opening a jar of retinol cream nightly and exposing the surface to oxygen is not ideal, even with the microspheres providing a layer of protection for the undelivered product. An airless pump would have been the obvious choice and would have maintained consistency with the product's emphasis on protecting the retinol.

The RetAsphere has since been discontinued from Kate Somerville's lineup, replaced by the +Retinol collection that pairs retinol with vitamin C. The brand's decision to move on is likely commercial rather than scientific — the time-release concept was sound, but the market's appetite for retinol products has evolved toward lighter textures, transparent concentrations, and cleaner ingredient profiles. The RetAsphere was a product that had the right idea about delivery but was dressed in a formula that belonged to an earlier era of luxury skincare.

For those who can still find it, the RetAsphere remains a viable option for dry-skinned retinol beginners who want a rich, protective formula that minimizes the adjustment period. The microencapsulation technology genuinely works as described, and the built-in ceramide and hyaluronic acid support is thoughtful. But the lavender oil, the jar packaging, the undisclosed concentration, and the discontinued status make it difficult to recommend over current alternatives that have learned from its strengths while avoiding its compromises.

Formula

The Science

The RetAsphere's core technology centers on retinol microencapsulation, a well-documented approach in cosmetic science. The PPG-12/SMDI Copolymer forms lipid microsphere walls that protect retinol from degradation during storage and provide controlled release upon skin contact. Research published in the International Journal of Pharmaceutics has demonstrated that microencapsulated retinol maintains significantly higher stability compared to free retinol in cosmetic formulations, with sustained release profiles that reduce peak concentration exposure by 40-60%.

Retinol itself is one of the most extensively studied anti-aging ingredients in dermatology. A landmark study published in the Archives of Dermatology (2007) by Kafi et al. demonstrated that 0.4% retinol applied topically for 24 weeks significantly improved fine wrinkles, with histological analysis showing increased glycosaminoglycan and procollagen I expression in the dermis.

Ceramide 3 (ceramide NP) addresses a specific concern with retinol use — barrier disruption. Research in the Journal of Investigative Dermatology has shown that retinoid use can deplete stratum corneum ceramides, contributing to the dryness, irritation, and increased transepidermal water loss that characterize the retinol adjustment period. Including ceramide 3 in the formula provides the specific lipid the skin loses during retinol treatment.

Sodium hyaluronate supplements this barrier support with humectant hydration. Its low molecular weight allows penetration into the upper epidermis, drawing and retaining water in the layers most affected by retinol-induced dehydration. The combination of ceramide replenishment and hyaluronic acid hydration creates a dual support system that theoretically reduces the severity and duration of the retinol adjustment period.

References

1. Improvement of naturally aged skin with vitamin A (retinol) — Archives of Dermatology (2007)

Dermatologist Perspective

Dermatologists widely endorse retinol as a first-line topical anti-aging ingredient, and the concept of time-release delivery to reduce irritation is consistent with clinical approaches to retinoid tolerance building. Board-certified dermatologists would recognize the merit of pairing retinol with ceramide 3 and hyaluronic acid, as this addresses the most common reasons patients discontinue retinol treatment — dryness and barrier disruption. However, dermatologists would note that the undisclosed concentration makes it impossible to compare with products that state their retinol percentage, and the lavender oil inclusion is at odds with the product's gentle positioning.

Guidance

The RetAsphere was Kate Somerville's answer to the fundamental retinol dilemma: the ingredient works, but people stop using it because of the irritation. Drawing on her clinic experience treating Hollywood clients who needed effective anti-aging without visible peeling or redness, she developed a time-release delivery system intended to make retinol tolerable for daily use. The product has since been replaced in the brand's lineup by the newer +Retinol collection.

About Kate Somerville Established Brand (5–20 years)

Kate Somerville launched her clinical skincare line in 2004 from her West Hollywood medispa. The RetAsphere was one of the brand's signature anti-aging products featuring proprietary microencapsulation technology. This product appears to have been discontinued and replaced by the brand's newer +Retinol collection.

Brand founded: 2004 · Product launched: 2013

Myth vs. Reality

Myth

Microencapsulated retinol is weaker than regular retinol because the encapsulation reduces potency.

Reality

Microencapsulation protects retinol from degradation and delivers it more efficiently into the skin over a longer period. The total retinol delivered may actually be higher than a non-encapsulated product because less is lost to air and light exposure. The encapsulation changes the delivery curve, not the potency.

Myth

If a retinol cream does not cause peeling, it is not strong enough to work.

Reality

Peeling and irritation are side effects of retinol, not indicators of efficacy. A time-release system that delivers retinol gradually can achieve the same cellular turnover benefits without the visible peeling, because the skin is never exposed to the high-concentration burst that triggers the irritation cascade.

FAQ

Common Praise

"Noticeable smoothing of fine lines within two weeks of consistent use"

"Rich moisturizing formula that prevents retinol-related dryness"

"Visible improvement in skin texture and morning brightness"

"Gentle enough for retinol beginners thanks to time-release system"

"Helps fade brown spots and hyperpigmentation over time"

Common Complaints

"Very expensive at $85 per ounce with undisclosed retinol concentration"

"Thick heavy texture requires significant rubbing and takes 5-10 minutes to absorb"

"Can still cause redness and dryness despite gentle release claims"

"Lavender scent unwelcome for fragrance-sensitive users"

"Slightly sticky or tacky feel during absorption period"

Notable Endorsements

Developed at Kate Somerville's West Hollywood celebrity medispa clinic

Appears In

best retinoid for aging best retinoid for dryness best retinoid for beginners best retinoid for texture

Related Conditions

aging dullness texture sun damage dark spots

Related Ingredients

retinol ceramides hyaluronic acid vitamin e