I found two search results that provide information about Deliplus serum ácido hialurónico, which is a product sold at Mercadona stores in Spain. The first two links are from INCIDecoder and provide a detailed list of ingredients for two different Deliplus products that contain hyaluronic acid.

Deliplus Ácido Hialurónico Y Ceramidas

This product contains the following ingredients:

• Aqua
• Bis-PEG-18 Methyl Ether Dimethyl Silane
• Glycerin
• Sodium Hyaluronate
• Ceramide NP
• Ceramide AP
• Ceramide EOP
• Phytosphingosine
• Cholesterol
• Sodium Lauroyl Lactylate
• Carbomer
• Xanthan Gum
• Sodium Hydroxide
• Ethylhexylglycerin
• Caprylyl Glycol
• Phenoxyethanol

Deliplus Gel Facial Ácido Hialurónico Hidrata

This product contains the following ingredients:

• Aqua (Water)
• Propanediol
• Glycerin
• Sodium Hyaluronate
• Xylitol
• Xylitylglucoside
• Anhydroxylitol
• Caprylyl Glycol
• Polysorbate 20
• Carbomer
• Sodium Polyacrylate Starch
• Sodium Benzoate
• Sodium Hydroxide
• Parfum (Fragrance)
• Ci 42090

Both products contain sodium hyaluronate, which is a form of hyaluronic acid that is used in skincare products for its moisturizing properties. The second product also contains other moisturizing ingredients such as glycerin and xylitol.

I did not find any information about positive or negative reviews of this product.