" I use 3 serums and love them all."   " Best serums ever! Fantastic results on my skin. Can’t stop using them! "   " Everyone says how great my skin looks. "   " Even my beautician tells me how beautiful my skin has become. Fantastic! "   " Genius serums, I look younger -☺ "   " Wonderful! I am now almost at the end of my second bottle! "   " Very Convincing. Firm Conviction does it all for my oily skin. "   " Can’t live without it… Literally can’t. "
" I use 3 serums and love them all."   " Best serums ever! Fantastic results on my skin. Can’t stop using them! "   " Everyone says how great my skin looks. "   " Even my beautician tells me how beautiful my skin has become. Fantastic! "   " Genius serums, I look younger -☺ "   " Wonderful! I am now almost at the end of my second bottle! "   " Very Convincing. Firm Conviction does it all for my oily skin. "   " Can’t live without it… Literally can’t. "

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Firm Conviction

Firm Conviction

Lifting, Contouring and Shaping Serum

For skins in need of a little lift, this condensed yet fast-penetrating serum infuses your skin with an optimal cocktail of innovative firming ingredients.


Firm Conviction offers instant firming, lifting and tightening effects that last up to 5 hours, while long-term shaping and contouring actions build up over 28 days.

Firm Conviction works immediately to tighten pores, impart a taut, velvety softness and reveal a fresh, smooth complexion. Over time, elasticity is improved, skin tone is more compact, and contours are redefined.

Availability: In stock

CHF 114.00
| 30ml e 1 Fl. Oz.

Key Ingredients



Gardenia Jasminoides

Origin: Plant and Biotech

Gardenia Jasminoides has been in cultivation in China for at least a thousand years, used in Chinese medicine to reduce swelling and bleeding following trauma and to treat injuries to the muscles, joints and tendons. It’s high content of anti-oxidants, polysaccharides and amino acids provide proven anti-inflammation benefits and help to rebuild the extra cellular matrix in the skin, keeping skin firm and elastic.

Gardenia Meristem also exhibits an impressive and unrivalled action in preserving the skin’s collagen system. Its high content of phytoesterols has been proven to boost skin's collagen content. In Firm Conviction, Gardenia Mersitem works alongside other powerful firming and restructuring ingredients to improve skin tone and elasticity, ensure a strong protection against photo-aging and to maintain your skin’s youthful firmness.



Centella Asiatica

Origin: Plant and Biotech

Centella Asiatica Meristem Concentrate (aka Gotu Kola) is brimming with goodness: rich in amino acids, fatty acids and a multitude of phytonutrients and polyphenols. As long as people have been healing wounds, Centella Asiatica was used as an effective anti-inflammatory and scar treatment. Its makeup of potent chemicals called triterpenoid saponins (asiaticoside, brahmoside, brahminoside, madecassoside and madecassic acid) has been shown to help heal wounds by boosting antioxidants, increasing the blood supply and strengthening the skin.

Centella Asiatica Meristem also has a significant impact on preserving the skin’s hyaluronic acid by inhibiting destructive enzymes, preserving moisture levels and firmness. In Firm Conviction, Centella Asiatica Meristem works alongside other powerful firming and restructuring ingredients such as Gardenia Meristem, Noni Ferment and Swiss Alpine Crystallised Light Water, to improve skin tone and elasticity, ensure a strong protection against photo-aging and maintaining your skin’s youthful taut appearance.



Morinda Citrifolia Linn

Origin: Plant and Lactobacillus

The Morinda citrifolia (Noni) plant is indigenous to the southern hemisphere and for over 2000 years has been used by ancient healers as the primary ingredient in their medicinal potions. In the Noni fruit, around 200 bioactive compounds have been scientifically identified. These actives –potent phyto-chemicals and anti-oxidants, including Anthraquinones, Glycosides, Lignans and Polysaccharides - bestow on the Noni Fruit considerable analgesic, antioxidant and anti-inflammatory properties.

Noni also exhibits visible firming and anti-wrinkle properties in skin thanks to its proven action on skin’s collagen content. Clinical trials using Noni in cosmeceuticals have revealed fantastic skin benefits: it helps to even skin tone and to improve skin firmness and elasticity, to normalize skin’s sebum production and it provides energy and vitality to tired skins. Noni has proven skin clarity benefits and helps to reduce shine and improve skin luminosity.



Soluble Marine Collagen

Origin: Marine

Obtained from the sustainable aquaculture of Jellyfish, Marine Collagen is the most bio-identical collagen ingredient available and is 99% homogenous to our own collagen. Elixseri’s collagen is extracted from the voluminous "umbrella" (mesogloea) of the jellyfish and can hold up to 200% more water than traditional collagen, forming a perfect shield of moisture and reducing trans-epidermal water loss.

Not only is Marine Collagen 3.5 times more hydrating than traditional collagen but it also harnesses the natural sunscreen from Jellyfish to offer a natural protection from the sun’s harmful and ageing rays. The remarkable protective, hydrating and regenerative benefits of Marine Collagen are complemented by line smoothing and pore closing actions that give skin a soft and supple appearance. Its superb hydrating and skin plumping activity, combined with its high bio-availability, will help to enhance skin’s natural moisture content, reduce trans-epidermal water loss and ensure a hydrated, smooth and comfortable skin.



Blend of Kappaphycus alvarezii (algae) and Caesalpinia Spinosa (shrub)

Origin: Plant, Marine and Biotech

Filmexel® is a patented biopolymer based on innovative green technology combining the powerful actives of Kappaphycus alvarezii – a species of Carrageenan red algae from the warm waters of the Philippines – and Caesalpinia Spinosa – a thorny shrub native to Peru, known as the “green gold of the Incas”. The ground-breaking mixture of these two plants is obtained without the use of any chemicals, and creates a mesh-like “second skin”, that acts as a non-occlusive barrier against pollutants, irritants and allergens and preserves the natural barrier function of the skin.

Applied to the skin, Filmexel® imparts instant lifting, firming and contouring, smoothing the skin’s surface and reducing the appearance of pores, lines and wrinkles. It also works to preserve the natural barrier function of the skin, ensuring that trans-epidermal water loss (TEWL) is reduced so that skin maintains its moisture levels. In Firm Conviction, Filmexel® works alongside other powerful firming and restructuring actives to improve skin tone and elasticity, ensure a strong protection against photo-aging and maintain your skin’s youthful firmness.



A blend of Eruca Sativa, Opuntia Ficus-Indica

Origin: Plant and Biotech

Couperine is a unique combination of two of the most interesting and ancient plants still consumed today for health and healing purposes. Made up of bio-liquified Rocket Leaf and Indian Fig Flower extracts, Couperine is a powerful detoxifier and protector for all skin types, especially the most sensitive. Packed with beneficial polyphenols and vitamins, such as Vitamins A and C, rutin and quervetin, Couperine is also a fantastic ingredient in the fight against premature skin aging and loss of firmness.

The primary phyto-chemical compounds in Couperine are Isothiocyanates – powerful anti-oxidants that protect the skin and eliminate the free-radicals which attack and damage collagen and elastin, thereby helping to keep skin firm and taught. Isothiocynates are also known to boost the production of our bodies’ own endogenous (internal) anti-oxidants for even more free-radical protection. Couperine works alongside other firming ingredients to promote skin that is that is firm and taut, nourished, hydrated and healthy.

Full Ingredients List



Bio-Regenerative Technology (BRGT™) In Firm Conviction

Elixseri’s exclusive Bio-Regenerative Technology fuses patent pending Swiss Alpine Crystallised Light Water, Gardenia and Centella Asiatica Meristem Concentrates and prebiotic Tropical Noni Ferment. Together these potent actives work in synergy to ensure that your skin’s microbiome is balanced and kept in optimal health, so that it is better able to protect, repair and regenerate itself.

  • Hydrates and strengthens the skin
  • Reduces irritation, soothes, protects
  • Provides powerful anti-oxidant action & reinforces skin's natural UV protection
  • Decongests, brightens, clarifies and firms
  • Promotes enhanced skin regeneration and energised cells
  • Provides gentle but powerful resurfacing actions
  • Improves skin tone
  • Optimises skin microbiome

Product Actions and Skin Benefits

Instant tightening & lifting effect Tightens pores
Skin surface looks smoother as pores are less visible. Skin is instantly lifted and smoothed, lasting for at least 8 hours and providing an ideal base for makeup.
Hydrates skin Plumps skin Normalises skin microbiome
Skin is silky, plumped and glowing with no feeling of discomfort. Skin functions are in balance, helping other care products to penetrate and work better, with less risk of acne or irritations.
Improves skin elasticity Reduces shine / Mattifies
Skin tone is strong, elastic and taut, bouncing back when touched; it appears energized with vigour and tonicity. The skin’s surface is mat, exhibiting no excess oils and free of shine.
Smoothes skin tone Unifies complexion
Skin appears fresher and smoother with less lines and wrinkles and a more taught appearance. Skin tone is even and brightened, appearing healthier and younger looking.
Firms Contours Reduces UV damage in skin Re-Energises skin
Regeneration and cellular renewal are enhanced. Skin appears more compact and lifted; elasticity is improved and deep wrinkles and expression lines are less visible. Skin appears healthy and fresh and other care products penetrate better and give desired results.

How To Apply

For all skin types and conditions, any age, gender or ethnicity. Especially recommended for combination to oily skin types.

Use daily, morning and/or night. Apply 2-3 drops, smoothing over face, neck and décolleté and finish with a gentle patting. Wait 5 minutes and follow with your usual skin care or accompanying Elixseri Serum. Avoid eye area and discontinue use if irritation occurs.

Use With


For maximum pore-tightening, anti-shine and deep firming, apply Opening Act and follow with Firm Conviction.

For extra hydration, apply Firm Conviction and follow with Rescue Diver.

For line smoothing and firming combined – the ultimate anti-age treatment – apply Firm Conviction and follow with Smooth Player daily.


Post a Review
Fresher, smoother, firmer skin


15 November, 2020

I was positively surprised not only by the beautiful, handy bottle and the pleasantly discreet fragrance, but also by the fact that my sensitive skin tolerated the serums of Elixseri very well. After four weeks of use my skin was fresher, smoother and really well moisturised. It also felt firmer and the wrinkles were reduced.(translated from the original German)
Beautiful, matt appearance


13 November, 2020

Elixseri's products (Opening Act, Rescue Diver and Firm Conviction) fit very well in the hand and are very easy to use because the consistency in the dispenser is super. They are easy to spread and can hardly be felt on the skin. However, I needed four pumps of the serums for face and neck. Nevertheless: My neck, my main problem zone regarding slack skin, seems to have become a little firmer. Firm Conviction has given my skin a beautiful, matt appearance and the pores appear finer. I will buy the serums again, because the firmness of my skin has changed noticeably.


13 November, 2020

My skin can no longer do without these serums, my skin is more radiant and I look much younger. (translated from original french)
Morning routine alone or with your day cream: a marvel!

Béryl 007

11 November, 2020

Thanks to my two Elixeri routines in the morning and evening I finally have beautiful skin. My patients ask me what I've done to get glowing skin. My patients think I'm giving injections, but no, the Elixeri serums work wonders on my mature, sensitive skin. (translated from the original French)
Firming, but not moisturizing enough


7 November, 2020

I used it in the summer and I appreciated its tensing effect. However, even on combination skin, it is not moisturizing enough. I used it with rescue diver and it worked very well.(translated from original French)
merci encore pour votre ecoute


9 June, 2020

Je suis ravie de l’état de ma peau. Elle est beaucoup plus lumineuse, plus aucun tiraillement et je la sens également beaucoup plus tonique.
Ma peau se porte beaucoup mieux et semble être de plus en plus belle.
Absolutely loving this


13 March, 2020

What a delightful journey I have been on with @elixseri. I am loving the energised “skin I am in”. My face appears fresher, clearer and firmer event the pigmentation on my cheeks is fading and I no longer hide it with blusher.


30 October, 2019

J’ai suivi les conseils d’Elixseri pour ma peau.
J’utilise leurs sérums depuis presqu’un an.
Trois fois par semaine, Opening Act le soir, et après 5 mn pose de Skin Meditation. Le lendemain matin m’a peau est plus belle.
Le matin Firm conviction puis ma crème de jour.
Même mon esthéticienne dit que ma peau est belle.
Depuis que j’utilise les sérums Elixseri, ma peau a rajeuni. Je ne mets plus jamais de fond de teint, mais simplement une poudre de soleil. Je suis enchantée par ces sérums que je recommande vivement.
Best Serums Ever!


7 October, 2019

I have discovered the Elixseri serums a few months ago and have seen their fantastic results on my skin. Can’t stop using them!
I use 3 and love them all


31 July, 2019

I am so loyal to this range. I use one or two serums everyday, often layering them instead of using cream. Opening Act keeps my skin looking clean and fresh and I really feel like it boosts all the other serums too.
Very convincing!


25 January, 2019

Firm Conviction does it all for my oily skin. It tightens my pores, controls my shine and still keeps me feeling hydrated with no stickiness.
I love being told I look really well!


25 January, 2018

I have been using Opening Act and Firm Conviction: the oval of my face seems tighter, my sun marks are fading and I am being complimented on how well i look. Most soothing after a 51st birthday!
Friendly to light skincare routines


12 December, 2017

This is the first serum I have ever tried, and I was very happy with the results. My pores are finer and it reduces redness. Plus, it was easy to incorporate it into my pretty basic skin-care routine, adding a sense of luxury and self-pampering!
Serum review

Lisa Smith

10 July, 2017

This serum has quickly become a part of my daily routine. I love the way my skin looks firmer and younger, more toned... My pores are less visible.

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