Decléor

Decléor is a French skincare house founded in Paris in 1974, built around the use of essential oils in cosmetics and best known for its Aromessence essential-oil serums. After decades passing through a series of corporate owners, the brand was discontinued by L'Oréal in 2023 and acquired in December 2024 by Cospal, a French company that has described it as a brand to be relaunched. As of mid-2026 it sits in that transitional, mid-relaunch state.

The company traces its identity to a single conviction: that, in its own words, the skin rebalances itself sustainably when the power of essential oils is controlled by rigorous cosmetic expertise. Decléor frames this as a cosmetics discipline rather than aromatherapy in the wellness sense — "this is not aromatherapy," its history page states, "it is an expert cosmetics company that has mastered the art of blending essential oils."

The brand was created in 1974 and originally called Cléor, a name drawn from la clé en or — the "golden key" to authentic beauty. It was renamed Decléor roughly a decade later, around the mid-1980s [2].

Accounts of who founded it differ. French Wikipedia describes a four-person team: two esthetician-aromatherapists, Caroline Colliard and Solange Dessimoulie, a physician, Dr. Jean-Jacques Legrand, and a businessman, André Benet [3]. A 2014 anniversary press release issued for the brand names only Solange Dessimoulie, describing her as the founder, alongside Caroline Colliard as a close collaborator [7]. The brand's own history page does not list founder names. This article follows Wikipedia's fuller four-person account while noting the narrower attribution.

Decléor positioned itself early as a professional brand, reaching customers through beauticians, salons, spas and pharmacies rather than chiefly through consumer retail. By its 40th anniversary in 2014 the brand reported a presence in more than 10,000 points of sale across 70 countries [7].

Ownership changed hands repeatedly. In 1989 the brand was acquired by Hervé Lesieur [5]. French Wikipedia records that Shiseido of Japan bought it in 2000 [3]. In 2014 the Japanese group sold Decléor to L'Oréal, bundled with the French haircare brand Carita; the price is given as roughly €230 million, with trade coverage citing €227.5 million [4].

Under L'Oréal the brand contracted. It was withdrawn from the US market in 2017, and a 2021 entry into China did not succeed. On 19 October 2023 L'Oréal announced it would stop selling Decléor, attributing the decision to economic and health-crisis pressures that it said had aggravated the brand's fragility and affected its viability [4]. Supply to salons and spas ceased that December.

Decléor's current owner is Cospal, a French beauty brand-builder founded in 2024 by Matthieu Lesieur. Cospal acquired Decléor — together with Saint-Gervais Mont Blanc — from L'Oréal on 12 December 2024 for an undisclosed sum [5]. The deal returned the brand to the Lesieur family: Matthieu Lesieur is the son of Hervé Lesieur, who had owned Decléor from 1989 before its sale to Shiseido.

Decléor describes a holistic "Skin-Body-Mind" approach, pairing essential oils and plant extracts intended to work on the skin with massage techniques and scent meant to affect wellbeing — an approach a retailer profile summarises as treatment that also soothes and relaxes the body and mind. The 2014 anniversary materials set out three founding principles: naturalness, sensoriality and effectiveness. Its slogan, la peau – le corps – l'esprit ("the skin – the body – the spirit"), reflects the same framing. The brand has operated at the prestige end of the market, prominent in luxury spas.

The brand's signature product is Aromessence, a line of concentrated essential-oil serums. The 2014 anniversary release states that Decléor was the first brand to introduce the term aromatherapy to cosmetics, and identifies Aromessence as its cult product [7]. Related innovations include the "Aroma Duo" concept, pairing Aromessence serums with corresponding day creams for specific skin types.

Other product families have included Night Balms, the Hydra Floral hydrating range and the Aroma Cleanse cleansing-and-toning line. Under Cospal, the relaunched site organises its hero offering around six "Natural Beauty Boosters" lines, each centred on a plant or essential oil: Neroli Bigarade, Green Mandarin, Lavender Iris, White Magnolia, Rosemary Officinalis and Rose Damascena.

Decléor is classed as acquired and in transition. Following L'Oréal's 2023 discontinuation, Cospal bought the brand in December 2024 and framed it as a turnaround project: Matthieu Lesieur stated that "Decléor needs to be reinvented from scratch," with plans to redefine the product range, signal the brand's return and rebuild its distribution [5]. Trade press has reported the brand as set for a comeback under the new owner [8]. As of mid-2026 the official site is operational with a product catalogue, but the wider relaunch remains in progress.