Luna Sleeping Night Oil

When Sunday Riley launched Luna in 2015, the retinoid conversation in mainstream skincare was stuck in a binary: you either committed to the peeling, flaking, purging gauntlet of retinol, or you opted out entirely. Luna proposed a third option — a retinoid that worked while you slept, buffered by botanicals, delivered in an oil that felt more like a spa ritual than a clinical treatment. It was a radical pitch at the time, and it won Refinery29’s inaugural Beauty Innovator Award within months of launch.

The star of this formula is hydroxypinacolone retinoate, or HPR — a retinoid ester that skips the multi-step conversion process traditional retinol requires before it can interact with skin cells. Where retinol must convert to retinaldehyde and then to retinoic acid before it does anything useful, HPR binds directly to retinoid receptors. The result, at least in theory, is retinoid benefits with dramatically less irritation. Published research supports this premise: a 2018 study in the Journal of the American Academy of Dermatology found that HPR increased procollagen production comparably to tretinoin in skin models, and a 2024 study showed HPR-based products achieving results comparable to fractional CO2 laser for photodamage parameters.

The formula itself is refreshingly simple for a prestige product. There are no silicones, no water phase, no emulsifiers — just cold-pressed seed oils serving as both the delivery vehicle and active contributors. Avocado oil leads the INCI list, providing oleic acid and phytosterols that reinforce the skin barrier during the overnight repair window. Concord grape seed oil adds resveratrol and proanthocyanidins. Blackberry seed oil contributes vitamin C and omega-3 fatty acids. Chia seed oil rounds out the base with alpha-linolenic acid. These aren’t filler oils — each brings a documented nutritional profile to the skin.

Then there’s the blue tansy, which is responsible for Luna’s signature sapphire color and much of its personality. Tanacetum annuum yields chamazulene during steam distillation — a compound with anti-inflammatory properties that gives the oil its natural blue hue. Sunday Riley pairs this with not one but three types of chamomile: German, English, and Cape. It’s an unusually thorough approach to soothing, and it helps explain why so many retinoid-shy users tolerate Luna without incident.

The sensory experience is polarizing in the best possible way. The oil drops onto skin as a vivid, almost jewel-toned blue that fades as you massage it in. The scent is aggressively herbal — vetiver, ylang ylang, neroli, and blood orange layered over that chamomile-tansy base. It smells like a very expensive apothecary, and you will either find this deeply relaxing or deeply annoying. There is no neutral position on Luna’s fragrance.

Absorption is reasonable for a pure oil. Four to five drops spread easily across the face, leaving skin with a dewy, nourished finish rather than the greasy slick you might expect. By morning, the oil has absorbed fully, and there’s a legitimate glow — skin looks plumper, smoother, and more rested. This immediate cosmetic payoff is partly why Luna built such a devoted following. The long-term retinoid benefits (fine line reduction, improved texture, more even tone) develop over six to eight weeks.

But Luna is not without its complications. The most significant is transparency — or the lack thereof. Sunday Riley does not disclose the concentration of HPR in this formula. For a product positioned as a serious retinoid treatment at a premium price, this is a meaningful omission. It makes it impossible for consumers or dermatologists to assess potency, compare to other retinoid products, or make informed decisions about where Luna fits in a progressive retinoid regimen.

The essential oil load also deserves scrutiny. While the chamomile and blue tansy serve legitimate anti-inflammatory functions, the formula includes citrus oils (neroli, blood orange) and ylang ylang — known sensitizers that offer more aromatic appeal than dermatological benefit. For a product marketed partly on its gentleness, including potential irritants is a contradictory choice. The two synthetic dyes (CI 61565 and CI 60725) that enhance the blue color beyond what the tansy naturally provides fall into the same category: cosmetically appealing but functionally unnecessary.

The elephant in the room is Sunday Riley’s 2020 FTC settlement over fake reviews posted on Sephora between 2015 and 2017, directed by CEO Sunday Riley herself. While post-settlement reviews should be unaffected, it’s worth noting when evaluating this brand’s relationship with consumer trust. The product should stand on its formulation merit, not manufactured enthusiasm.

Value is where Luna struggles most. At $55 for half an ounce, the cost per application is significantly higher than most retinoid products on the market. The larger 35 mL bottle at $105 offers marginally better value, but this remains a premium-priced product without the disclosed active concentrations that would justify confident comparison to more affordable options.

All that said, Luna does something genuinely useful: it makes retinoids feel accessible and even enjoyable for people who would otherwise avoid them entirely. The ritual of applying a blue oil before bed, the morning-after glow, the absence of peeling and irritation — these things matter for adherence, and adherence is everything in skincare. If Luna gets someone started on retinoids who then graduates to stronger formulations, it has served its purpose beautifully. Just know what you’re paying for: an exceptionally pleasant retinoid experience, not necessarily the most potent one.

Formula