Firm Conviction

122.00 inc. tax

Lifting, Contouring and Shaping Serum


A light-weight and fast-absorbing formula which offers instant and long-term firming and tightening benefits, perfect for skin in need of a little lift.

Skin looks and feels velvety soft and smooth. Over time, elasticity is improved and skin tone is more compact. Skin looks more even, pore size is reduced and contours are redefined.

In stock

SKU: ELX1004 Categories: , , Features: , , , , , , , ,
  • Instant tightening & lifting effect ​
  • Long-term action on skin elasticity and firmness
  • Appearance of pores is minimised
  • Reduces shine / mattifies​
  • Smooths skin tone and unifies complexion​
  • Normalises Skin Microbiome
  • Optimises cell regeneration

Firm Conviction is suitable for all ages, skin types and skin conditions.
Use daily, morning and/or night. Apply 2-3 drops, smoothing over face, neck and décolleté. Follow with your usual skin care or accompanying Elixseri Serum.

Firm Conviction has been dermatologically tested for use around the eye area. Gently smooth over eyelids and eye contour. Use alone or follow with an eye cream. You may find that your eyes water slightly for the first few applications, this will stop once your eyes adjusts to our fruit ferments.

GARDENIA MERISTEM (Gardenia Jasminoides) Proven and unrivalled action in preserving and boosting skin’s collagen system. It works to improve skin tone and elasticity and to ensure antioxidant protection.

CENTELLA ASIATICA MERISTEM (Centella Asiatica )Has a significant impact on preserving the skin’s hyaluronic acid so that moisture levels and firmness are maintained. It helps improve skin tone and elasticity.

PREBIOTIC NONI FERMENT (Citrifolia Linn) Exhibits visible firming and anti-wrinkle properties thanks to its proven action on skin’s collagen. It normalises skin’s sebum production and helps to reduce shine.

MARINE COLLAGEN 3.5 times more hydrating than traditional collagen, our Marine Collagen forms a perfect shield of moisture and reduces trans-epidermal water loss.

FILMEXEL® Gives skin instant lifting, firming and contouring, smoothing the skin’s surface and reducing the appearance of pores, lines and wrinkles.

COUPERINE A blend of Rocket and Indian Fig, powerful antioxidants that protect the skin and eliminate the free-radicals which damage collagen and elastin, thereby helping to keep skin firm and taught.

Ingredients: Aqua/[Water]* / Betaine / Morinda Citrifolia Fruit Extract / Sweet Almond Oil Polyglyceryl-6 Esters/ Glycerin / Lysolecithin / Tapioca Starch / Kappaphycus Alvarezii Extract & Caesalpinia Spinosa Fruit Extract / Hydrolyzed Eruca Sativa Leaf / Polylactic Acid / Hydrolyzed Opuntia Ficus-Indica Flower Extract / Centella Asiatica Meristem Cell Culture / Capsicum Annuum Fruit Meristem Cell / Gardenia Jasminoides Meristem Cell Culture / Soluble Collagen / Lonicera Caprifolium Flower Extract/[Lonicera Caprifolium (Honeysuckle) Flower Extract] / Lonicera Japonica Flower Extract/[Lonicera Japonica (Honeysuckle) Flower Extract] / Propanediol** / Carbomer / Sodium Anisate / Citric Acid / Parfum/(Fragrance)*** / Sodium Polyacrylate Starch / Sodium Chloride/ Sodium Benzoate / Potassium Sorbate / Xanthan Gum / Sodium Hydroxide

* Swiss Alpine Light Water **natural extract of corn origin *** <0.5%

At the heart of every Elixseri serum is our exclusive Bio-Regenerative Technology.
BRGT™ is a fusion of patented Light Water, probiotic fruit ferments and innovative stem cells. It is formulated to support and promote a balanced microbiome and better skin health, to slow down the ageing process, to re-energise cellular metabolism and to boost the skin’s regenerative and protective functions.

Within 30 days of using Firm Conviction
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 skincare products penetrate more deeply and with better results.

100% of users noticed an increase in skin elasticity and a reduction in lines. 86% of users felt that they had younger looking skin.(Results based on Elixseri’s blind user-tests, performed on a consumer focus group of over 100 subjects in a time frame of 30 days.)

Weight 178 g

A firming and lifting serum which contours skin and minimizes appearance of pores

Product Type

Anti-age serum, Anti-wrinkle serum, Day serum, Firming serum

Skin Type

Combination skin, Mature skin, Normal skin, Oily skin


Dryness / Dehydration, Lack of elasticity, Lines / Wrinkles

22 reviews for Firm Conviction

  1. Laurence Hamon

    Transformed my skin! In a desire to reduce my routine to a minimum of products, I discovered Elixseri and my skin loves it! I no longer have small pimples, redness, too shiny skin in the T zone, or allergies. I have tried all the serums and they are all superb! My essential all year round! Thank you for the quality of your products!

  2. Audrey

    Depuis un mois je constate une nette différence sur l’ovale du visage et mon grain de peau.

  3. Laura

    Je vois déjà les résultats après une semaine d’utilisation. Ma peau n’est pas grasse et j’adore la texture. J’ai moins imperfections et retrouve une peau éclatante.

  4. Priscilla

    En voici deux pour votre visage et votre cou bien sûr, à ne jamais oublier. Je teste depuis quelques semaines deux sérums de la marque Elixseri. Quelques gouttes suffisent et le résultat est probant ! L’Opening Act est un exfoliant à appliquer le soir avant de se coucher, à utiliser 1 à 2 fois par semaine. Il agit pendant le sommeil pour éliminer les cellules mortes et l’accumulation de résidus d’autres produits. Quant au sérum Firm Conviction que j’utilise le matin, c’est un sérum léger et absorbant qui procure un effet raffermissant et resserrant instantané. Leur parfum est discret et leur texture est très agréable. Les flacons sont sublimes et très qualitatifs. Je trouve ma peau plus belle, plus lisse et plus dense depuis que j’utilise ces sérums.

  5. Nonie Sanders (verified owner)

    I recently started using Firm Conviction and Opening Act and can not tell you how brilliant they are – it is so rare that I use a beauty product where I see instant results and these have now become essential to my skincare routine. I have never found anything else that makes my skin feel so good but also so healthy at the same time. The science behind Elixseri is fascinatingly clever and I am so pleased I have found their fabulous products! Worth every penny!

  6. angelabraun

    Been in Love with Rescue Diver, Opening Act and Firm Conviction for years😻😻😻

  7. Louise

    I have tried the “FIRM CONVICTION”. I am in my mid 30s but never took care of my skin when I was younger and smoked a lot too. So I have premature ageing. Wow. This product has really changed the appearance of my crows feet and forehead worry lines. The serum smells divine and soaks into my skin so quickly. I adore using this product. Within a couple weeks, the results are obvious to me. My face seems more radiant, my crows feet less defined for SURE and I really can’t wait to see the results in another 6 months. Louise, age 33

  8. rookwoodglenn

    Firm conviction, now that I’m hitting my late 40s i needed something that would firm up my skin and i feel that this product is really helping me do that. Will in time love to try some more of ur wonderful products. Can’t wait to wash my face these days ❤

  9. Karin


    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)

  10. Virginie


    My skin can no longer do without these serums, my skin is more radiant and I look much younger. (translated from original french)

  11. Marie


    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.

  12. Beryl

    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)

  13. Alexia

    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)

  14. Myriam

    I am delighted with the condition of my skin. It is much more luminous, no more tightness and I also feel it is much more toned.
    My skin feels much better and seems to be more and more beautiful. (Translated from original French)

  15. nubianwoman69


    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 even the pigmentation on my cheeks is fading and I no longer hide it with blusher.

  16. Beryl

    I have been following Elixseri’s advice for my skin.
    I have been using their serums for almost a year.
    Three times a week, Opening Act in the evening, and after 5 minutes Skin Meditation. The next morning my skin is more beautiful.
    In the morning Firm conviction then my day cream.
    Even my beautician says my skin is beautiful.
    Since I have been using the Elixseri serums, my skin has been rejuvenated. I never use foundation anymore, just a sun powder. I am delighted with these serums and highly recommend them.

    (Translated from original French)

  17. Fany


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

  18. Tanya

    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.

  19. Jennier

    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.

  20. Anne

    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!

  21. Kaitlin

    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!

  22. Lisa Smith

    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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Layer with...

For maximum pore-tightening, anti-shine and deep firming, apply Opening Act and follow with Firm Conviction 3 nights per week

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    A deeply hydrating Hyaluronic Acid serum for all skin types and all ages 113.00 inc. tax

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

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    Smooth Player

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


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