Le Prunier Plum Helix C Serum bottle draped in dripping milky cream, beside a collage of dried plums and a pink panelMatte black pump bottle on white with a navy National Eczema Association Accepted sealClose-up swatch of glossy ivory serum smeared across a pale background, dotted with tiny bubblesBlack serum bottle on a reflective surface between a red plum, a yellow sunflower and green sproutsHand pressing the black pump to dispense a creamy ivory dollop onto a fingertip

Le Prunier Plum Helix C Serum is a new milky vitamin C serum with the brand's PlumHelix Bioactive, camu camu and edelweiss stem cells. The 30 ml serum costs $120 in the US. It appeared on Le Prunier's own site on 20 October 2026, and Credo Beauty and Beautylish listed it a week later.

Updated 28 October 2026: in stock at Le Prunier and Credo Beauty for $120, and listed at Beautylish for $120.

Quick Facts

DetailInfo
BrandLe Prunier
ProductPlum Helix™ C Serum (Bioactive Brightening Treatment)
Release dateOn leprunier.com by 20 October 2026; at Credo Beauty and Beautylish by 27 October 2026 (official launch date not announced)
Price$120 (US); $108 with Subscribe & Save on leprunier.com
AvailabilityLe Prunier, Credo Beauty, Beautylish (US)
Size30 ml / 1 fl oz
TextureMilky, lightweight, fast-absorbing
ScentNo added fragrance
UseAM and PM

When Did the Le Prunier Plum Helix C Serum Launch?

Le Prunier hasn't announced an official release date. The serum was listed on leprunier.com by 20 October 2026, tagged as New. On 27 October 2026, Credo Beauty's listing went live, and Beautylish announced the serum on Instagram as "Now at Beautylish.com".

Price

The Le Prunier Plum Helix C Serum costs $120 (US) for 30 ml at all three US stockists. Le Prunier's own site also offers a Subscribe & Save option at $108, which is 10% off. No UK or European pricing has been published.

Where to Buy

  • US: Le Prunier ($120), Credo Beauty ($120), Beautylish ($120)
  • UK: Not yet confirmed
  • Europe: Not yet confirmed
  • Other markets: Availability varies by region, and more international stockists may be added.

Checked 28 October 2026: in stock at Le Prunier ($120) and Credo Beauty ($120); listed at Beautylish ($120, 30 mL).

For other new serums, moisturisers and treatments, see our skincare releases page.

What Makes the Plum Helix C Serum Different?

  • A farm-grown plum active: The PlumHelix Bioactive is Le Prunier's own farm-grown plum ingredient. Credo notes that the brand's plums come from the Taylor family's fourth-generation farm in Sutter County, California. This sets it apart from the KORA Organics Kakadu Plum Brightening Vitamin C Serum, which uses Australian Kakadu plum.
  • Vitamin C from camu camu: The serum's vitamin C comes from camu camu fruit extract. Beautylish describes camu camu as having "up to 60x the vitamin C of an orange."
  • Fragrance-free with a natural scent: No fragrance is added. Credo describes the serum's natural aroma as warm and subtly marzipan-like.

Formula and Packaging

According to Le Prunier, the serum fades the look of dark spots, discolouration and uneven tone without compromising the skin barrier. The key ingredients, as the brand describes them:

  • PlumHelix™ Bioactive: A farm-grown plum active with an encapsulation delivery system. Le Prunier says the encapsulation stabilises the formula, and that the bioactive boosts hydration and supports barrier resilience. The brand also claims "up to 20X greater ingredient delivery" and "70% increased hydration in just 30 minutes."
  • Camu camu: The serum's vitamin C source, which the brand says visibly brightens and energises skin.
  • Edelweiss stem cells: An extract from the Alpine flower, which Le Prunier says helps skin look stronger, smoother and more resilient.
  • Sunflower sprouts: Described as "inspired by NAD+," these are included to nourish skin.
  • Plum Beauty Oil: The brand's signature plum seed oil, also sold as a standalone product.
  • Free-from list: No essential oils, parabens, sulfates or added fragrance, per Le Prunier.
  • Packaging: A black airless pump bottle. The product images show a National Eczema Association "Accepted" seal on the packaging.

Le Prunier also cites a 34-person consumer perception study:

  • 100% said their skin felt plumper and more hydrated immediately.
  • 100% reported smoother texture after two weeks.
  • 100% saw brighter, more even-looking skin and an improvement in the look of dark spots after four weeks.

This is a consumer perception study, not a clinical trial.

It is one of several autumn 2026 serum launches, alongside the Murad Retinal ReSculpt Neck & Décolleté Lifting Serum.

How to Use

Le Prunier's directions are to apply 2–3 pumps to cleansed skin morning and night and pat it in. In the morning, finish with SPF. The brand suggests following the serum with Plum Beauty Oil.

Sources

Woman with slicked-back dark hair and glowing skin holding the black Le Prunier bottle beside her cheekBlack serum bottle laid over a broad, glossy swipe of ivory cream on an off-white backgroundHalved and whole camu camu berries beside sliced red plum, with text on the fruit's vitamin C contentFuzzy white edelweiss flower on cream with text about edelweiss stem cells, framed by fruit and lilac panelsClose-up of a sunflower head with text about nutrient-rich sunflower sprouts, beside a woman's glowing face